1 | /* |
2 | * QuickJS C library |
3 | * |
4 | * Copyright (c) 2017-2021 Fabrice Bellard |
5 | * Copyright (c) 2017-2021 Charlie Gordon |
6 | * |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
8 | * of this software and associated documentation files (the "Software"), to deal |
9 | * in the Software without restriction, including without limitation the rights |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
11 | * copies of the Software, and to permit persons to whom the Software is |
12 | * furnished to do so, subject to the following conditions: |
13 | * |
14 | * The above copyright notice and this permission notice shall be included in |
15 | * all copies or substantial portions of the Software. |
16 | * |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
23 | * THE SOFTWARE. |
24 | */ |
25 | #include <stdlib.h> |
26 | #include <stdio.h> |
27 | #include <stdarg.h> |
28 | #include <inttypes.h> |
29 | #include <string.h> |
30 | #include <assert.h> |
31 | #include <unistd.h> |
32 | #include <errno.h> |
33 | #include <fcntl.h> |
34 | #include <sys/time.h> |
35 | #include <time.h> |
36 | #include <signal.h> |
37 | #include <limits.h> |
38 | #include <sys/stat.h> |
39 | #include <dirent.h> |
40 | #if defined(_WIN32) |
41 | #include <windows.h> |
42 | #include <conio.h> |
43 | #include <utime.h> |
44 | #else |
45 | #include <dlfcn.h> |
46 | #include <termios.h> |
47 | #include <sys/ioctl.h> |
48 | #include <sys/wait.h> |
49 | |
50 | #if defined(__FreeBSD__) |
51 | extern char **environ; |
52 | #endif |
53 | |
54 | #if defined(__APPLE__) || defined(__FreeBSD__) |
55 | typedef sig_t sighandler_t; |
56 | #endif |
57 | |
58 | #if defined(__APPLE__) |
59 | #if !defined(environ) |
60 | #include <crt_externs.h> |
61 | #define environ (*_NSGetEnviron()) |
62 | #endif |
63 | #endif /* __APPLE__ */ |
64 | |
65 | #endif |
66 | |
67 | /* enable the os.Worker API. It relies on POSIX threads */ |
68 | #define USE_WORKER |
69 | |
70 | #ifdef USE_WORKER |
71 | #include <pthread.h> |
72 | #include <stdatomic.h> |
73 | #endif |
74 | |
75 | #include "cutils.h" |
76 | #include "list.h" |
77 | #include "quickjs-libc.h" |
78 | |
79 | #if !defined(PATH_MAX) |
80 | #define PATH_MAX 4096 |
81 | #endif |
82 | |
83 | /* TODO: |
84 | - add socket calls |
85 | */ |
86 | |
87 | typedef struct { |
88 | struct list_head link; |
89 | int fd; |
90 | JSValue rw_func[2]; |
91 | } JSOSRWHandler; |
92 | |
93 | typedef struct { |
94 | struct list_head link; |
95 | int sig_num; |
96 | JSValue func; |
97 | } JSOSSignalHandler; |
98 | |
99 | typedef struct { |
100 | struct list_head link; |
101 | int timer_id; |
102 | int64_t timeout; |
103 | JSValue func; |
104 | } JSOSTimer; |
105 | |
106 | typedef struct { |
107 | struct list_head link; |
108 | uint8_t *data; |
109 | size_t data_len; |
110 | /* list of SharedArrayBuffers, necessary to free the message */ |
111 | uint8_t **sab_tab; |
112 | size_t sab_tab_len; |
113 | } JSWorkerMessage; |
114 | |
115 | typedef struct JSWaker { |
116 | #ifdef _WIN32 |
117 | HANDLE handle; |
118 | #else |
119 | int read_fd; |
120 | int write_fd; |
121 | #endif |
122 | } JSWaker; |
123 | |
124 | typedef struct { |
125 | int ref_count; |
126 | #ifdef USE_WORKER |
127 | pthread_mutex_t mutex; |
128 | #endif |
129 | struct list_head msg_queue; /* list of JSWorkerMessage.link */ |
130 | JSWaker waker; |
131 | } JSWorkerMessagePipe; |
132 | |
133 | typedef struct { |
134 | struct list_head link; |
135 | JSWorkerMessagePipe *recv_pipe; |
136 | JSValue on_message_func; |
137 | } JSWorkerMessageHandler; |
138 | |
139 | typedef struct JSThreadState { |
140 | struct list_head os_rw_handlers; /* list of JSOSRWHandler.link */ |
141 | struct list_head os_signal_handlers; /* list JSOSSignalHandler.link */ |
142 | struct list_head os_timers; /* list of JSOSTimer.link */ |
143 | struct list_head port_list; /* list of JSWorkerMessageHandler.link */ |
144 | int eval_script_recurse; /* only used in the main thread */ |
145 | int next_timer_id; /* for setTimeout() */ |
146 | /* not used in the main thread */ |
147 | JSWorkerMessagePipe *recv_pipe, *send_pipe; |
148 | } JSThreadState; |
149 | |
150 | static uint64_t os_pending_signals; |
151 | static int (*os_poll_func)(JSContext *ctx); |
152 | |
153 | static void js_std_dbuf_init(JSContext *ctx, DynBuf *s) |
154 | { |
155 | dbuf_init2(s, JS_GetRuntime(ctx), (DynBufReallocFunc *)js_realloc_rt); |
156 | } |
157 | |
158 | static BOOL my_isdigit(int c) |
159 | { |
160 | return (c >= '0' && c <= '9'); |
161 | } |
162 | |
163 | static JSValue js_printf_internal(JSContext *ctx, |
164 | int argc, JSValueConst *argv, FILE *fp) |
165 | { |
166 | char fmtbuf[32]; |
167 | uint8_t cbuf[UTF8_CHAR_LEN_MAX+1]; |
168 | JSValue res; |
169 | DynBuf dbuf; |
170 | const char *fmt_str = NULL; |
171 | const uint8_t *fmt, *fmt_end; |
172 | const uint8_t *p; |
173 | char *q; |
174 | int i, c, len, mod; |
175 | size_t fmt_len; |
176 | int32_t int32_arg; |
177 | int64_t int64_arg; |
178 | double double_arg; |
179 | const char *string_arg; |
180 | /* Use indirect call to dbuf_printf to prevent gcc warning */ |
181 | int (*dbuf_printf_fun)(DynBuf *s, const char *fmt, ...) = (void*)dbuf_printf; |
182 | |
183 | js_std_dbuf_init(ctx, &dbuf); |
184 | |
185 | if (argc > 0) { |
186 | fmt_str = JS_ToCStringLen(ctx, &fmt_len, argv[0]); |
187 | if (!fmt_str) |
188 | goto fail; |
189 | |
190 | i = 1; |
191 | fmt = (const uint8_t *)fmt_str; |
192 | fmt_end = fmt + fmt_len; |
193 | while (fmt < fmt_end) { |
194 | for (p = fmt; fmt < fmt_end && *fmt != '%'; fmt++) |
195 | continue; |
196 | dbuf_put(&dbuf, p, fmt - p); |
197 | if (fmt >= fmt_end) |
198 | break; |
199 | q = fmtbuf; |
200 | *q++ = *fmt++; /* copy '%' */ |
201 | |
202 | /* flags */ |
203 | for(;;) { |
204 | c = *fmt; |
205 | if (c == '0' || c == '#' || c == '+' || c == '-' || c == ' ' || |
206 | c == '\'') { |
207 | if (q >= fmtbuf + sizeof(fmtbuf) - 1) |
208 | goto invalid; |
209 | *q++ = c; |
210 | fmt++; |
211 | } else { |
212 | break; |
213 | } |
214 | } |
215 | /* width */ |
216 | if (*fmt == '*') { |
217 | if (i >= argc) |
218 | goto missing; |
219 | if (JS_ToInt32(ctx, &int32_arg, argv[i++])) |
220 | goto fail; |
221 | q += snprintf(q, fmtbuf + sizeof(fmtbuf) - q, "%d" , int32_arg); |
222 | fmt++; |
223 | } else { |
224 | while (my_isdigit(*fmt)) { |
225 | if (q >= fmtbuf + sizeof(fmtbuf) - 1) |
226 | goto invalid; |
227 | *q++ = *fmt++; |
228 | } |
229 | } |
230 | if (*fmt == '.') { |
231 | if (q >= fmtbuf + sizeof(fmtbuf) - 1) |
232 | goto invalid; |
233 | *q++ = *fmt++; |
234 | if (*fmt == '*') { |
235 | if (i >= argc) |
236 | goto missing; |
237 | if (JS_ToInt32(ctx, &int32_arg, argv[i++])) |
238 | goto fail; |
239 | q += snprintf(q, fmtbuf + sizeof(fmtbuf) - q, "%d" , int32_arg); |
240 | fmt++; |
241 | } else { |
242 | while (my_isdigit(*fmt)) { |
243 | if (q >= fmtbuf + sizeof(fmtbuf) - 1) |
244 | goto invalid; |
245 | *q++ = *fmt++; |
246 | } |
247 | } |
248 | } |
249 | |
250 | /* we only support the "l" modifier for 64 bit numbers */ |
251 | mod = ' '; |
252 | if (*fmt == 'l') { |
253 | mod = *fmt++; |
254 | } |
255 | |
256 | /* type */ |
257 | c = *fmt++; |
258 | if (q >= fmtbuf + sizeof(fmtbuf) - 1) |
259 | goto invalid; |
260 | *q++ = c; |
261 | *q = '\0'; |
262 | |
263 | switch (c) { |
264 | case 'c': |
265 | if (i >= argc) |
266 | goto missing; |
267 | if (JS_IsString(argv[i])) { |
268 | string_arg = JS_ToCString(ctx, argv[i++]); |
269 | if (!string_arg) |
270 | goto fail; |
271 | int32_arg = unicode_from_utf8((const uint8_t *)string_arg, UTF8_CHAR_LEN_MAX, &p); |
272 | JS_FreeCString(ctx, string_arg); |
273 | } else { |
274 | if (JS_ToInt32(ctx, &int32_arg, argv[i++])) |
275 | goto fail; |
276 | } |
277 | /* handle utf-8 encoding explicitly */ |
278 | if ((unsigned)int32_arg > 0x10FFFF) |
279 | int32_arg = 0xFFFD; |
280 | /* ignore conversion flags, width and precision */ |
281 | len = unicode_to_utf8(cbuf, int32_arg); |
282 | dbuf_put(&dbuf, cbuf, len); |
283 | break; |
284 | |
285 | case 'd': |
286 | case 'i': |
287 | case 'o': |
288 | case 'u': |
289 | case 'x': |
290 | case 'X': |
291 | if (i >= argc) |
292 | goto missing; |
293 | if (JS_ToInt64Ext(ctx, &int64_arg, argv[i++])) |
294 | goto fail; |
295 | if (mod == 'l') { |
296 | /* 64 bit number */ |
297 | #if defined(_WIN32) |
298 | if (q >= fmtbuf + sizeof(fmtbuf) - 3) |
299 | goto invalid; |
300 | q[2] = q[-1]; |
301 | q[-1] = 'I'; |
302 | q[0] = '6'; |
303 | q[1] = '4'; |
304 | q[3] = '\0'; |
305 | dbuf_printf_fun(&dbuf, fmtbuf, (int64_t)int64_arg); |
306 | #else |
307 | if (q >= fmtbuf + sizeof(fmtbuf) - 2) |
308 | goto invalid; |
309 | q[1] = q[-1]; |
310 | q[-1] = q[0] = 'l'; |
311 | q[2] = '\0'; |
312 | dbuf_printf_fun(&dbuf, fmtbuf, (long long)int64_arg); |
313 | #endif |
314 | } else { |
315 | dbuf_printf_fun(&dbuf, fmtbuf, (int)int64_arg); |
316 | } |
317 | break; |
318 | |
319 | case 's': |
320 | if (i >= argc) |
321 | goto missing; |
322 | /* XXX: handle strings containing null characters */ |
323 | string_arg = JS_ToCString(ctx, argv[i++]); |
324 | if (!string_arg) |
325 | goto fail; |
326 | dbuf_printf_fun(&dbuf, fmtbuf, string_arg); |
327 | JS_FreeCString(ctx, string_arg); |
328 | break; |
329 | |
330 | case 'e': |
331 | case 'f': |
332 | case 'g': |
333 | case 'a': |
334 | case 'E': |
335 | case 'F': |
336 | case 'G': |
337 | case 'A': |
338 | if (i >= argc) |
339 | goto missing; |
340 | if (JS_ToFloat64(ctx, &double_arg, argv[i++])) |
341 | goto fail; |
342 | dbuf_printf_fun(&dbuf, fmtbuf, double_arg); |
343 | break; |
344 | |
345 | case '%': |
346 | dbuf_putc(&dbuf, '%'); |
347 | break; |
348 | |
349 | default: |
350 | /* XXX: should support an extension mechanism */ |
351 | invalid: |
352 | JS_ThrowTypeError(ctx, "invalid conversion specifier in format string" ); |
353 | goto fail; |
354 | missing: |
355 | JS_ThrowReferenceError(ctx, "missing argument for conversion specifier" ); |
356 | goto fail; |
357 | } |
358 | } |
359 | JS_FreeCString(ctx, fmt_str); |
360 | } |
361 | if (dbuf.error) { |
362 | res = JS_ThrowOutOfMemory(ctx); |
363 | } else { |
364 | if (fp) { |
365 | len = fwrite(dbuf.buf, 1, dbuf.size, fp); |
366 | res = JS_NewInt32(ctx, len); |
367 | } else { |
368 | res = JS_NewStringLen(ctx, (char *)dbuf.buf, dbuf.size); |
369 | } |
370 | } |
371 | dbuf_free(&dbuf); |
372 | return res; |
373 | |
374 | fail: |
375 | JS_FreeCString(ctx, fmt_str); |
376 | dbuf_free(&dbuf); |
377 | return JS_EXCEPTION; |
378 | } |
379 | |
380 | uint8_t *js_load_file(JSContext *ctx, size_t *pbuf_len, const char *filename) |
381 | { |
382 | FILE *f; |
383 | uint8_t *buf; |
384 | size_t buf_len; |
385 | long lret; |
386 | |
387 | f = fopen(filename, "rb" ); |
388 | if (!f) |
389 | return NULL; |
390 | if (fseek(f, 0, SEEK_END) < 0) |
391 | goto fail; |
392 | lret = ftell(f); |
393 | if (lret < 0) |
394 | goto fail; |
395 | /* XXX: on Linux, ftell() return LONG_MAX for directories */ |
396 | if (lret == LONG_MAX) { |
397 | errno = EISDIR; |
398 | goto fail; |
399 | } |
400 | buf_len = lret; |
401 | if (fseek(f, 0, SEEK_SET) < 0) |
402 | goto fail; |
403 | if (ctx) |
404 | buf = js_malloc(ctx, buf_len + 1); |
405 | else |
406 | buf = malloc(buf_len + 1); |
407 | if (!buf) |
408 | goto fail; |
409 | if (fread(buf, 1, buf_len, f) != buf_len) { |
410 | errno = EIO; |
411 | if (ctx) |
412 | js_free(ctx, buf); |
413 | else |
414 | free(buf); |
415 | fail: |
416 | fclose(f); |
417 | return NULL; |
418 | } |
419 | buf[buf_len] = '\0'; |
420 | fclose(f); |
421 | *pbuf_len = buf_len; |
422 | return buf; |
423 | } |
424 | |
425 | /* load and evaluate a file */ |
426 | static JSValue js_loadScript(JSContext *ctx, JSValueConst this_val, |
427 | int argc, JSValueConst *argv) |
428 | { |
429 | uint8_t *buf; |
430 | const char *filename; |
431 | JSValue ret; |
432 | size_t buf_len; |
433 | |
434 | filename = JS_ToCString(ctx, argv[0]); |
435 | if (!filename) |
436 | return JS_EXCEPTION; |
437 | buf = js_load_file(ctx, &buf_len, filename); |
438 | if (!buf) { |
439 | JS_ThrowReferenceError(ctx, "could not load '%s'" , filename); |
440 | JS_FreeCString(ctx, filename); |
441 | return JS_EXCEPTION; |
442 | } |
443 | ret = JS_Eval(ctx, (char *)buf, buf_len, filename, |
444 | JS_EVAL_TYPE_GLOBAL); |
445 | js_free(ctx, buf); |
446 | JS_FreeCString(ctx, filename); |
447 | return ret; |
448 | } |
449 | |
450 | /* load a file as a UTF-8 encoded string */ |
451 | static JSValue js_std_loadFile(JSContext *ctx, JSValueConst this_val, |
452 | int argc, JSValueConst *argv) |
453 | { |
454 | uint8_t *buf; |
455 | const char *filename; |
456 | JSValue ret; |
457 | size_t buf_len; |
458 | |
459 | filename = JS_ToCString(ctx, argv[0]); |
460 | if (!filename) |
461 | return JS_EXCEPTION; |
462 | buf = js_load_file(ctx, &buf_len, filename); |
463 | JS_FreeCString(ctx, filename); |
464 | if (!buf) |
465 | return JS_NULL; |
466 | ret = JS_NewStringLen(ctx, (char *)buf, buf_len); |
467 | js_free(ctx, buf); |
468 | return ret; |
469 | } |
470 | |
471 | typedef JSModuleDef *(JSInitModuleFunc)(JSContext *ctx, |
472 | const char *module_name); |
473 | |
474 | |
475 | #if defined(_WIN32) |
476 | static JSModuleDef *js_module_loader_so(JSContext *ctx, |
477 | const char *module_name) |
478 | { |
479 | JS_ThrowReferenceError(ctx, "shared library modules are not supported yet" ); |
480 | return NULL; |
481 | } |
482 | #else |
483 | static JSModuleDef *js_module_loader_so(JSContext *ctx, |
484 | const char *module_name) |
485 | { |
486 | JSModuleDef *m; |
487 | void *hd; |
488 | JSInitModuleFunc *init; |
489 | char *filename; |
490 | |
491 | if (!strchr(module_name, '/')) { |
492 | /* must add a '/' so that the DLL is not searched in the |
493 | system library paths */ |
494 | filename = js_malloc(ctx, strlen(module_name) + 2 + 1); |
495 | if (!filename) |
496 | return NULL; |
497 | strcpy(filename, "./" ); |
498 | strcpy(filename + 2, module_name); |
499 | } else { |
500 | filename = (char *)module_name; |
501 | } |
502 | |
503 | /* C module */ |
504 | hd = dlopen(filename, RTLD_NOW | RTLD_LOCAL); |
505 | if (filename != module_name) |
506 | js_free(ctx, filename); |
507 | if (!hd) { |
508 | JS_ThrowReferenceError(ctx, "could not load module filename '%s' as shared library" , |
509 | module_name); |
510 | goto fail; |
511 | } |
512 | |
513 | init = dlsym(hd, "js_init_module" ); |
514 | if (!init) { |
515 | JS_ThrowReferenceError(ctx, "could not load module filename '%s': js_init_module not found" , |
516 | module_name); |
517 | goto fail; |
518 | } |
519 | |
520 | m = init(ctx, module_name); |
521 | if (!m) { |
522 | JS_ThrowReferenceError(ctx, "could not load module filename '%s': initialization error" , |
523 | module_name); |
524 | fail: |
525 | if (hd) |
526 | dlclose(hd); |
527 | return NULL; |
528 | } |
529 | return m; |
530 | } |
531 | #endif /* !_WIN32 */ |
532 | |
533 | int js_module_set_import_meta(JSContext *ctx, JSValueConst func_val, |
534 | JS_BOOL use_realpath, JS_BOOL is_main) |
535 | { |
536 | JSModuleDef *m; |
537 | char buf[PATH_MAX + 16]; |
538 | JSValue meta_obj; |
539 | JSAtom module_name_atom; |
540 | const char *module_name; |
541 | |
542 | assert(JS_VALUE_GET_TAG(func_val) == JS_TAG_MODULE); |
543 | m = JS_VALUE_GET_PTR(func_val); |
544 | |
545 | module_name_atom = JS_GetModuleName(ctx, m); |
546 | module_name = JS_AtomToCString(ctx, module_name_atom); |
547 | JS_FreeAtom(ctx, module_name_atom); |
548 | if (!module_name) |
549 | return -1; |
550 | if (!strchr(module_name, ':')) { |
551 | strcpy(buf, "file://" ); |
552 | #if !defined(_WIN32) |
553 | /* realpath() cannot be used with modules compiled with qjsc |
554 | because the corresponding module source code is not |
555 | necessarily present */ |
556 | if (use_realpath) { |
557 | char *res = realpath(module_name, buf + strlen(buf)); |
558 | if (!res) { |
559 | JS_ThrowTypeError(ctx, "realpath failure" ); |
560 | JS_FreeCString(ctx, module_name); |
561 | return -1; |
562 | } |
563 | } else |
564 | #endif |
565 | { |
566 | pstrcat(buf, sizeof(buf), module_name); |
567 | } |
568 | } else { |
569 | pstrcpy(buf, sizeof(buf), module_name); |
570 | } |
571 | JS_FreeCString(ctx, module_name); |
572 | |
573 | meta_obj = JS_GetImportMeta(ctx, m); |
574 | if (JS_IsException(meta_obj)) |
575 | return -1; |
576 | JS_DefinePropertyValueStr(ctx, meta_obj, "url" , |
577 | JS_NewString(ctx, buf), |
578 | JS_PROP_C_W_E); |
579 | JS_DefinePropertyValueStr(ctx, meta_obj, "main" , |
580 | JS_NewBool(ctx, is_main), |
581 | JS_PROP_C_W_E); |
582 | JS_FreeValue(ctx, meta_obj); |
583 | return 0; |
584 | } |
585 | |
586 | JSModuleDef *js_module_loader(JSContext *ctx, |
587 | const char *module_name, void *opaque) |
588 | { |
589 | JSModuleDef *m; |
590 | |
591 | if (has_suffix(module_name, ".so" )) { |
592 | m = js_module_loader_so(ctx, module_name); |
593 | } else { |
594 | size_t buf_len; |
595 | uint8_t *buf; |
596 | JSValue func_val; |
597 | |
598 | buf = js_load_file(ctx, &buf_len, module_name); |
599 | if (!buf) { |
600 | JS_ThrowReferenceError(ctx, "could not load module filename '%s'" , |
601 | module_name); |
602 | return NULL; |
603 | } |
604 | |
605 | /* compile the module */ |
606 | func_val = JS_Eval(ctx, (char *)buf, buf_len, module_name, |
607 | JS_EVAL_TYPE_MODULE | JS_EVAL_FLAG_COMPILE_ONLY); |
608 | js_free(ctx, buf); |
609 | if (JS_IsException(func_val)) |
610 | return NULL; |
611 | /* XXX: could propagate the exception */ |
612 | js_module_set_import_meta(ctx, func_val, TRUE, FALSE); |
613 | /* the module is already referenced, so we must free it */ |
614 | m = JS_VALUE_GET_PTR(func_val); |
615 | JS_FreeValue(ctx, func_val); |
616 | } |
617 | return m; |
618 | } |
619 | |
620 | static JSValue js_std_exit(JSContext *ctx, JSValueConst this_val, |
621 | int argc, JSValueConst *argv) |
622 | { |
623 | int status; |
624 | if (JS_ToInt32(ctx, &status, argv[0])) |
625 | status = -1; |
626 | exit(status); |
627 | return JS_UNDEFINED; |
628 | } |
629 | |
630 | static JSValue js_std_getenv(JSContext *ctx, JSValueConst this_val, |
631 | int argc, JSValueConst *argv) |
632 | { |
633 | const char *name, *str; |
634 | name = JS_ToCString(ctx, argv[0]); |
635 | if (!name) |
636 | return JS_EXCEPTION; |
637 | str = getenv(name); |
638 | JS_FreeCString(ctx, name); |
639 | if (!str) |
640 | return JS_UNDEFINED; |
641 | else |
642 | return JS_NewString(ctx, str); |
643 | } |
644 | |
645 | #if defined(_WIN32) |
646 | static void setenv(const char *name, const char *value, int overwrite) |
647 | { |
648 | char *str; |
649 | size_t name_len, value_len; |
650 | name_len = strlen(name); |
651 | value_len = strlen(value); |
652 | str = malloc(name_len + 1 + value_len + 1); |
653 | memcpy(str, name, name_len); |
654 | str[name_len] = '='; |
655 | memcpy(str + name_len + 1, value, value_len); |
656 | str[name_len + 1 + value_len] = '\0'; |
657 | _putenv(str); |
658 | free(str); |
659 | } |
660 | |
661 | static void unsetenv(const char *name) |
662 | { |
663 | setenv(name, "" , TRUE); |
664 | } |
665 | #endif /* _WIN32 */ |
666 | |
667 | static JSValue js_std_setenv(JSContext *ctx, JSValueConst this_val, |
668 | int argc, JSValueConst *argv) |
669 | { |
670 | const char *name, *value; |
671 | name = JS_ToCString(ctx, argv[0]); |
672 | if (!name) |
673 | return JS_EXCEPTION; |
674 | value = JS_ToCString(ctx, argv[1]); |
675 | if (!value) { |
676 | JS_FreeCString(ctx, name); |
677 | return JS_EXCEPTION; |
678 | } |
679 | setenv(name, value, TRUE); |
680 | JS_FreeCString(ctx, name); |
681 | JS_FreeCString(ctx, value); |
682 | return JS_UNDEFINED; |
683 | } |
684 | |
685 | static JSValue js_std_unsetenv(JSContext *ctx, JSValueConst this_val, |
686 | int argc, JSValueConst *argv) |
687 | { |
688 | const char *name; |
689 | name = JS_ToCString(ctx, argv[0]); |
690 | if (!name) |
691 | return JS_EXCEPTION; |
692 | unsetenv(name); |
693 | JS_FreeCString(ctx, name); |
694 | return JS_UNDEFINED; |
695 | } |
696 | |
697 | /* return an object containing the list of the available environment |
698 | variables. */ |
699 | static JSValue js_std_getenviron(JSContext *ctx, JSValueConst this_val, |
700 | int argc, JSValueConst *argv) |
701 | { |
702 | char **envp; |
703 | const char *name, *p, *value; |
704 | JSValue obj; |
705 | uint32_t idx; |
706 | size_t name_len; |
707 | JSAtom atom; |
708 | int ret; |
709 | |
710 | obj = JS_NewObject(ctx); |
711 | if (JS_IsException(obj)) |
712 | return JS_EXCEPTION; |
713 | envp = environ; |
714 | for(idx = 0; envp[idx] != NULL; idx++) { |
715 | name = envp[idx]; |
716 | p = strchr(name, '='); |
717 | name_len = p - name; |
718 | if (!p) |
719 | continue; |
720 | value = p + 1; |
721 | atom = JS_NewAtomLen(ctx, name, name_len); |
722 | if (atom == JS_ATOM_NULL) |
723 | goto fail; |
724 | ret = JS_DefinePropertyValue(ctx, obj, atom, JS_NewString(ctx, value), |
725 | JS_PROP_C_W_E); |
726 | JS_FreeAtom(ctx, atom); |
727 | if (ret < 0) |
728 | goto fail; |
729 | } |
730 | return obj; |
731 | fail: |
732 | JS_FreeValue(ctx, obj); |
733 | return JS_EXCEPTION; |
734 | } |
735 | |
736 | static JSValue js_std_gc(JSContext *ctx, JSValueConst this_val, |
737 | int argc, JSValueConst *argv) |
738 | { |
739 | JS_RunGC(JS_GetRuntime(ctx)); |
740 | return JS_UNDEFINED; |
741 | } |
742 | |
743 | static int interrupt_handler(JSRuntime *rt, void *opaque) |
744 | { |
745 | return (os_pending_signals >> SIGINT) & 1; |
746 | } |
747 | |
748 | static int get_bool_option(JSContext *ctx, BOOL *pbool, |
749 | JSValueConst obj, |
750 | const char *option) |
751 | { |
752 | JSValue val; |
753 | val = JS_GetPropertyStr(ctx, obj, option); |
754 | if (JS_IsException(val)) |
755 | return -1; |
756 | if (!JS_IsUndefined(val)) { |
757 | *pbool = JS_ToBool(ctx, val); |
758 | } |
759 | JS_FreeValue(ctx, val); |
760 | return 0; |
761 | } |
762 | |
763 | static JSValue js_evalScript(JSContext *ctx, JSValueConst this_val, |
764 | int argc, JSValueConst *argv) |
765 | { |
766 | JSRuntime *rt = JS_GetRuntime(ctx); |
767 | JSThreadState *ts = JS_GetRuntimeOpaque(rt); |
768 | const char *str; |
769 | size_t len; |
770 | JSValue ret; |
771 | JSValueConst options_obj; |
772 | BOOL backtrace_barrier = FALSE; |
773 | BOOL is_async = FALSE; |
774 | int flags; |
775 | |
776 | if (argc >= 2) { |
777 | options_obj = argv[1]; |
778 | if (get_bool_option(ctx, &backtrace_barrier, options_obj, |
779 | "backtrace_barrier" )) |
780 | return JS_EXCEPTION; |
781 | if (get_bool_option(ctx, &is_async, options_obj, |
782 | "async" )) |
783 | return JS_EXCEPTION; |
784 | } |
785 | |
786 | str = JS_ToCStringLen(ctx, &len, argv[0]); |
787 | if (!str) |
788 | return JS_EXCEPTION; |
789 | if (!ts->recv_pipe && ++ts->eval_script_recurse == 1) { |
790 | /* install the interrupt handler */ |
791 | JS_SetInterruptHandler(JS_GetRuntime(ctx), interrupt_handler, NULL); |
792 | } |
793 | flags = JS_EVAL_TYPE_GLOBAL; |
794 | if (backtrace_barrier) |
795 | flags |= JS_EVAL_FLAG_BACKTRACE_BARRIER; |
796 | if (is_async) |
797 | flags |= JS_EVAL_FLAG_ASYNC; |
798 | ret = JS_Eval(ctx, str, len, "<evalScript>" , flags); |
799 | JS_FreeCString(ctx, str); |
800 | if (!ts->recv_pipe && --ts->eval_script_recurse == 0) { |
801 | /* remove the interrupt handler */ |
802 | JS_SetInterruptHandler(JS_GetRuntime(ctx), NULL, NULL); |
803 | os_pending_signals &= ~((uint64_t)1 << SIGINT); |
804 | /* convert the uncatchable "interrupted" error into a normal error |
805 | so that it can be caught by the REPL */ |
806 | if (JS_IsException(ret)) |
807 | JS_ResetUncatchableError(ctx); |
808 | } |
809 | return ret; |
810 | } |
811 | |
812 | static JSClassID js_std_file_class_id; |
813 | |
814 | typedef struct { |
815 | FILE *f; |
816 | BOOL close_in_finalizer; |
817 | BOOL is_popen; |
818 | } JSSTDFile; |
819 | |
820 | static void js_std_file_finalizer(JSRuntime *rt, JSValue val) |
821 | { |
822 | JSSTDFile *s = JS_GetOpaque(val, js_std_file_class_id); |
823 | if (s) { |
824 | if (s->f && s->close_in_finalizer) { |
825 | if (s->is_popen) |
826 | pclose(s->f); |
827 | else |
828 | fclose(s->f); |
829 | } |
830 | js_free_rt(rt, s); |
831 | } |
832 | } |
833 | |
834 | static ssize_t js_get_errno(ssize_t ret) |
835 | { |
836 | if (ret == -1) |
837 | ret = -errno; |
838 | return ret; |
839 | } |
840 | |
841 | static JSValue js_std_strerror(JSContext *ctx, JSValueConst this_val, |
842 | int argc, JSValueConst *argv) |
843 | { |
844 | int err; |
845 | if (JS_ToInt32(ctx, &err, argv[0])) |
846 | return JS_EXCEPTION; |
847 | return JS_NewString(ctx, strerror(err)); |
848 | } |
849 | |
850 | static JSValue js_std_parseExtJSON(JSContext *ctx, JSValueConst this_val, |
851 | int argc, JSValueConst *argv) |
852 | { |
853 | JSValue obj; |
854 | const char *str; |
855 | size_t len; |
856 | |
857 | str = JS_ToCStringLen(ctx, &len, argv[0]); |
858 | if (!str) |
859 | return JS_EXCEPTION; |
860 | obj = JS_ParseJSON2(ctx, str, len, "<input>" , JS_PARSE_JSON_EXT); |
861 | JS_FreeCString(ctx, str); |
862 | return obj; |
863 | } |
864 | |
865 | static JSValue js_new_std_file(JSContext *ctx, FILE *f, |
866 | BOOL close_in_finalizer, |
867 | BOOL is_popen) |
868 | { |
869 | JSSTDFile *s; |
870 | JSValue obj; |
871 | obj = JS_NewObjectClass(ctx, js_std_file_class_id); |
872 | if (JS_IsException(obj)) |
873 | return obj; |
874 | s = js_mallocz(ctx, sizeof(*s)); |
875 | if (!s) { |
876 | JS_FreeValue(ctx, obj); |
877 | return JS_EXCEPTION; |
878 | } |
879 | s->close_in_finalizer = close_in_finalizer; |
880 | s->is_popen = is_popen; |
881 | s->f = f; |
882 | JS_SetOpaque(obj, s); |
883 | return obj; |
884 | } |
885 | |
886 | static void js_set_error_object(JSContext *ctx, JSValue obj, int err) |
887 | { |
888 | if (!JS_IsUndefined(obj)) { |
889 | JS_SetPropertyStr(ctx, obj, "errno" , JS_NewInt32(ctx, err)); |
890 | } |
891 | } |
892 | |
893 | static JSValue js_std_open(JSContext *ctx, JSValueConst this_val, |
894 | int argc, JSValueConst *argv) |
895 | { |
896 | const char *filename, *mode = NULL; |
897 | FILE *f; |
898 | int err; |
899 | |
900 | filename = JS_ToCString(ctx, argv[0]); |
901 | if (!filename) |
902 | goto fail; |
903 | mode = JS_ToCString(ctx, argv[1]); |
904 | if (!mode) |
905 | goto fail; |
906 | if (mode[strspn(mode, "rwa+b" )] != '\0') { |
907 | JS_ThrowTypeError(ctx, "invalid file mode" ); |
908 | goto fail; |
909 | } |
910 | |
911 | f = fopen(filename, mode); |
912 | if (!f) |
913 | err = errno; |
914 | else |
915 | err = 0; |
916 | if (argc >= 3) |
917 | js_set_error_object(ctx, argv[2], err); |
918 | JS_FreeCString(ctx, filename); |
919 | JS_FreeCString(ctx, mode); |
920 | if (!f) |
921 | return JS_NULL; |
922 | return js_new_std_file(ctx, f, TRUE, FALSE); |
923 | fail: |
924 | JS_FreeCString(ctx, filename); |
925 | JS_FreeCString(ctx, mode); |
926 | return JS_EXCEPTION; |
927 | } |
928 | |
929 | static JSValue js_std_popen(JSContext *ctx, JSValueConst this_val, |
930 | int argc, JSValueConst *argv) |
931 | { |
932 | const char *filename, *mode = NULL; |
933 | FILE *f; |
934 | int err; |
935 | |
936 | filename = JS_ToCString(ctx, argv[0]); |
937 | if (!filename) |
938 | goto fail; |
939 | mode = JS_ToCString(ctx, argv[1]); |
940 | if (!mode) |
941 | goto fail; |
942 | if (mode[strspn(mode, "rw" )] != '\0') { |
943 | JS_ThrowTypeError(ctx, "invalid file mode" ); |
944 | goto fail; |
945 | } |
946 | |
947 | f = popen(filename, mode); |
948 | if (!f) |
949 | err = errno; |
950 | else |
951 | err = 0; |
952 | if (argc >= 3) |
953 | js_set_error_object(ctx, argv[2], err); |
954 | JS_FreeCString(ctx, filename); |
955 | JS_FreeCString(ctx, mode); |
956 | if (!f) |
957 | return JS_NULL; |
958 | return js_new_std_file(ctx, f, TRUE, TRUE); |
959 | fail: |
960 | JS_FreeCString(ctx, filename); |
961 | JS_FreeCString(ctx, mode); |
962 | return JS_EXCEPTION; |
963 | } |
964 | |
965 | static JSValue js_std_fdopen(JSContext *ctx, JSValueConst this_val, |
966 | int argc, JSValueConst *argv) |
967 | { |
968 | const char *mode; |
969 | FILE *f; |
970 | int fd, err; |
971 | |
972 | if (JS_ToInt32(ctx, &fd, argv[0])) |
973 | return JS_EXCEPTION; |
974 | mode = JS_ToCString(ctx, argv[1]); |
975 | if (!mode) |
976 | goto fail; |
977 | if (mode[strspn(mode, "rwa+" )] != '\0') { |
978 | JS_ThrowTypeError(ctx, "invalid file mode" ); |
979 | goto fail; |
980 | } |
981 | |
982 | f = fdopen(fd, mode); |
983 | if (!f) |
984 | err = errno; |
985 | else |
986 | err = 0; |
987 | if (argc >= 3) |
988 | js_set_error_object(ctx, argv[2], err); |
989 | JS_FreeCString(ctx, mode); |
990 | if (!f) |
991 | return JS_NULL; |
992 | return js_new_std_file(ctx, f, TRUE, FALSE); |
993 | fail: |
994 | JS_FreeCString(ctx, mode); |
995 | return JS_EXCEPTION; |
996 | } |
997 | |
998 | static JSValue js_std_tmpfile(JSContext *ctx, JSValueConst this_val, |
999 | int argc, JSValueConst *argv) |
1000 | { |
1001 | FILE *f; |
1002 | f = tmpfile(); |
1003 | if (argc >= 1) |
1004 | js_set_error_object(ctx, argv[0], f ? 0 : errno); |
1005 | if (!f) |
1006 | return JS_NULL; |
1007 | return js_new_std_file(ctx, f, TRUE, FALSE); |
1008 | } |
1009 | |
1010 | static JSValue js_std_sprintf(JSContext *ctx, JSValueConst this_val, |
1011 | int argc, JSValueConst *argv) |
1012 | { |
1013 | return js_printf_internal(ctx, argc, argv, NULL); |
1014 | } |
1015 | |
1016 | static JSValue js_std_printf(JSContext *ctx, JSValueConst this_val, |
1017 | int argc, JSValueConst *argv) |
1018 | { |
1019 | return js_printf_internal(ctx, argc, argv, stdout); |
1020 | } |
1021 | |
1022 | static FILE *js_std_file_get(JSContext *ctx, JSValueConst obj) |
1023 | { |
1024 | JSSTDFile *s = JS_GetOpaque2(ctx, obj, js_std_file_class_id); |
1025 | if (!s) |
1026 | return NULL; |
1027 | if (!s->f) { |
1028 | JS_ThrowTypeError(ctx, "invalid file handle" ); |
1029 | return NULL; |
1030 | } |
1031 | return s->f; |
1032 | } |
1033 | |
1034 | static JSValue js_std_file_puts(JSContext *ctx, JSValueConst this_val, |
1035 | int argc, JSValueConst *argv, int magic) |
1036 | { |
1037 | FILE *f; |
1038 | int i; |
1039 | const char *str; |
1040 | size_t len; |
1041 | |
1042 | if (magic == 0) { |
1043 | f = stdout; |
1044 | } else { |
1045 | f = js_std_file_get(ctx, this_val); |
1046 | if (!f) |
1047 | return JS_EXCEPTION; |
1048 | } |
1049 | |
1050 | for(i = 0; i < argc; i++) { |
1051 | str = JS_ToCStringLen(ctx, &len, argv[i]); |
1052 | if (!str) |
1053 | return JS_EXCEPTION; |
1054 | fwrite(str, 1, len, f); |
1055 | JS_FreeCString(ctx, str); |
1056 | } |
1057 | return JS_UNDEFINED; |
1058 | } |
1059 | |
1060 | static JSValue js_std_file_close(JSContext *ctx, JSValueConst this_val, |
1061 | int argc, JSValueConst *argv) |
1062 | { |
1063 | JSSTDFile *s = JS_GetOpaque2(ctx, this_val, js_std_file_class_id); |
1064 | int err; |
1065 | if (!s) |
1066 | return JS_EXCEPTION; |
1067 | if (!s->f) |
1068 | return JS_ThrowTypeError(ctx, "invalid file handle" ); |
1069 | if (s->is_popen) |
1070 | err = js_get_errno(pclose(s->f)); |
1071 | else |
1072 | err = js_get_errno(fclose(s->f)); |
1073 | s->f = NULL; |
1074 | return JS_NewInt32(ctx, err); |
1075 | } |
1076 | |
1077 | static JSValue js_std_file_printf(JSContext *ctx, JSValueConst this_val, |
1078 | int argc, JSValueConst *argv) |
1079 | { |
1080 | FILE *f = js_std_file_get(ctx, this_val); |
1081 | if (!f) |
1082 | return JS_EXCEPTION; |
1083 | return js_printf_internal(ctx, argc, argv, f); |
1084 | } |
1085 | |
1086 | static JSValue js_std_file_flush(JSContext *ctx, JSValueConst this_val, |
1087 | int argc, JSValueConst *argv) |
1088 | { |
1089 | FILE *f = js_std_file_get(ctx, this_val); |
1090 | if (!f) |
1091 | return JS_EXCEPTION; |
1092 | fflush(f); |
1093 | return JS_UNDEFINED; |
1094 | } |
1095 | |
1096 | static JSValue js_std_file_tell(JSContext *ctx, JSValueConst this_val, |
1097 | int argc, JSValueConst *argv, int is_bigint) |
1098 | { |
1099 | FILE *f = js_std_file_get(ctx, this_val); |
1100 | int64_t pos; |
1101 | if (!f) |
1102 | return JS_EXCEPTION; |
1103 | #if defined(__linux__) || defined(__GLIBC__) |
1104 | pos = ftello(f); |
1105 | #else |
1106 | pos = ftell(f); |
1107 | #endif |
1108 | if (is_bigint) |
1109 | return JS_NewBigInt64(ctx, pos); |
1110 | else |
1111 | return JS_NewInt64(ctx, pos); |
1112 | } |
1113 | |
1114 | static JSValue js_std_file_seek(JSContext *ctx, JSValueConst this_val, |
1115 | int argc, JSValueConst *argv) |
1116 | { |
1117 | FILE *f = js_std_file_get(ctx, this_val); |
1118 | int64_t pos; |
1119 | int whence, ret; |
1120 | if (!f) |
1121 | return JS_EXCEPTION; |
1122 | if (JS_ToInt64Ext(ctx, &pos, argv[0])) |
1123 | return JS_EXCEPTION; |
1124 | if (JS_ToInt32(ctx, &whence, argv[1])) |
1125 | return JS_EXCEPTION; |
1126 | #if defined(__linux__) || defined(__GLIBC__) |
1127 | ret = fseeko(f, pos, whence); |
1128 | #else |
1129 | ret = fseek(f, pos, whence); |
1130 | #endif |
1131 | if (ret < 0) |
1132 | ret = -errno; |
1133 | return JS_NewInt32(ctx, ret); |
1134 | } |
1135 | |
1136 | static JSValue js_std_file_eof(JSContext *ctx, JSValueConst this_val, |
1137 | int argc, JSValueConst *argv) |
1138 | { |
1139 | FILE *f = js_std_file_get(ctx, this_val); |
1140 | if (!f) |
1141 | return JS_EXCEPTION; |
1142 | return JS_NewBool(ctx, feof(f)); |
1143 | } |
1144 | |
1145 | static JSValue js_std_file_error(JSContext *ctx, JSValueConst this_val, |
1146 | int argc, JSValueConst *argv) |
1147 | { |
1148 | FILE *f = js_std_file_get(ctx, this_val); |
1149 | if (!f) |
1150 | return JS_EXCEPTION; |
1151 | return JS_NewBool(ctx, ferror(f)); |
1152 | } |
1153 | |
1154 | static JSValue js_std_file_clearerr(JSContext *ctx, JSValueConst this_val, |
1155 | int argc, JSValueConst *argv) |
1156 | { |
1157 | FILE *f = js_std_file_get(ctx, this_val); |
1158 | if (!f) |
1159 | return JS_EXCEPTION; |
1160 | clearerr(f); |
1161 | return JS_UNDEFINED; |
1162 | } |
1163 | |
1164 | static JSValue js_std_file_fileno(JSContext *ctx, JSValueConst this_val, |
1165 | int argc, JSValueConst *argv) |
1166 | { |
1167 | FILE *f = js_std_file_get(ctx, this_val); |
1168 | if (!f) |
1169 | return JS_EXCEPTION; |
1170 | return JS_NewInt32(ctx, fileno(f)); |
1171 | } |
1172 | |
1173 | static JSValue js_std_file_read_write(JSContext *ctx, JSValueConst this_val, |
1174 | int argc, JSValueConst *argv, int magic) |
1175 | { |
1176 | FILE *f = js_std_file_get(ctx, this_val); |
1177 | uint64_t pos, len; |
1178 | size_t size, ret; |
1179 | uint8_t *buf; |
1180 | |
1181 | if (!f) |
1182 | return JS_EXCEPTION; |
1183 | if (JS_ToIndex(ctx, &pos, argv[1])) |
1184 | return JS_EXCEPTION; |
1185 | if (JS_ToIndex(ctx, &len, argv[2])) |
1186 | return JS_EXCEPTION; |
1187 | buf = JS_GetArrayBuffer(ctx, &size, argv[0]); |
1188 | if (!buf) |
1189 | return JS_EXCEPTION; |
1190 | if (pos + len > size) |
1191 | return JS_ThrowRangeError(ctx, "read/write array buffer overflow" ); |
1192 | if (magic) |
1193 | ret = fwrite(buf + pos, 1, len, f); |
1194 | else |
1195 | ret = fread(buf + pos, 1, len, f); |
1196 | return JS_NewInt64(ctx, ret); |
1197 | } |
1198 | |
1199 | /* XXX: could use less memory and go faster */ |
1200 | static JSValue js_std_file_getline(JSContext *ctx, JSValueConst this_val, |
1201 | int argc, JSValueConst *argv) |
1202 | { |
1203 | FILE *f = js_std_file_get(ctx, this_val); |
1204 | int c; |
1205 | DynBuf dbuf; |
1206 | JSValue obj; |
1207 | |
1208 | if (!f) |
1209 | return JS_EXCEPTION; |
1210 | |
1211 | js_std_dbuf_init(ctx, &dbuf); |
1212 | for(;;) { |
1213 | c = fgetc(f); |
1214 | if (c == EOF) { |
1215 | if (dbuf.size == 0) { |
1216 | /* EOF */ |
1217 | dbuf_free(&dbuf); |
1218 | return JS_NULL; |
1219 | } else { |
1220 | break; |
1221 | } |
1222 | } |
1223 | if (c == '\n') |
1224 | break; |
1225 | if (dbuf_putc(&dbuf, c)) { |
1226 | dbuf_free(&dbuf); |
1227 | return JS_ThrowOutOfMemory(ctx); |
1228 | } |
1229 | } |
1230 | obj = JS_NewStringLen(ctx, (const char *)dbuf.buf, dbuf.size); |
1231 | dbuf_free(&dbuf); |
1232 | return obj; |
1233 | } |
1234 | |
1235 | /* XXX: could use less memory and go faster */ |
1236 | static JSValue js_std_file_readAsString(JSContext *ctx, JSValueConst this_val, |
1237 | int argc, JSValueConst *argv) |
1238 | { |
1239 | FILE *f = js_std_file_get(ctx, this_val); |
1240 | int c; |
1241 | DynBuf dbuf; |
1242 | JSValue obj; |
1243 | uint64_t max_size64; |
1244 | size_t max_size; |
1245 | JSValueConst max_size_val; |
1246 | |
1247 | if (!f) |
1248 | return JS_EXCEPTION; |
1249 | |
1250 | if (argc >= 1) |
1251 | max_size_val = argv[0]; |
1252 | else |
1253 | max_size_val = JS_UNDEFINED; |
1254 | max_size = (size_t)-1; |
1255 | if (!JS_IsUndefined(max_size_val)) { |
1256 | if (JS_ToIndex(ctx, &max_size64, max_size_val)) |
1257 | return JS_EXCEPTION; |
1258 | if (max_size64 < max_size) |
1259 | max_size = max_size64; |
1260 | } |
1261 | |
1262 | js_std_dbuf_init(ctx, &dbuf); |
1263 | while (max_size != 0) { |
1264 | c = fgetc(f); |
1265 | if (c == EOF) |
1266 | break; |
1267 | if (dbuf_putc(&dbuf, c)) { |
1268 | dbuf_free(&dbuf); |
1269 | return JS_EXCEPTION; |
1270 | } |
1271 | max_size--; |
1272 | } |
1273 | obj = JS_NewStringLen(ctx, (const char *)dbuf.buf, dbuf.size); |
1274 | dbuf_free(&dbuf); |
1275 | return obj; |
1276 | } |
1277 | |
1278 | static JSValue js_std_file_getByte(JSContext *ctx, JSValueConst this_val, |
1279 | int argc, JSValueConst *argv) |
1280 | { |
1281 | FILE *f = js_std_file_get(ctx, this_val); |
1282 | if (!f) |
1283 | return JS_EXCEPTION; |
1284 | return JS_NewInt32(ctx, fgetc(f)); |
1285 | } |
1286 | |
1287 | static JSValue js_std_file_putByte(JSContext *ctx, JSValueConst this_val, |
1288 | int argc, JSValueConst *argv) |
1289 | { |
1290 | FILE *f = js_std_file_get(ctx, this_val); |
1291 | int c; |
1292 | if (!f) |
1293 | return JS_EXCEPTION; |
1294 | if (JS_ToInt32(ctx, &c, argv[0])) |
1295 | return JS_EXCEPTION; |
1296 | c = fputc(c, f); |
1297 | return JS_NewInt32(ctx, c); |
1298 | } |
1299 | |
1300 | /* urlGet */ |
1301 | |
1302 | #define URL_GET_PROGRAM "curl -s -i --" |
1303 | #define URL_GET_BUF_SIZE 4096 |
1304 | |
1305 | static int (FILE *f, char *buf, size_t buf_size, |
1306 | DynBuf *dbuf) |
1307 | { |
1308 | int c; |
1309 | char *p; |
1310 | |
1311 | p = buf; |
1312 | for(;;) { |
1313 | c = fgetc(f); |
1314 | if (c < 0) |
1315 | return -1; |
1316 | if ((p - buf) < buf_size - 1) |
1317 | *p++ = c; |
1318 | if (dbuf) |
1319 | dbuf_putc(dbuf, c); |
1320 | if (c == '\n') |
1321 | break; |
1322 | } |
1323 | *p = '\0'; |
1324 | return 0; |
1325 | } |
1326 | |
1327 | static int http_get_status(const char *buf) |
1328 | { |
1329 | const char *p = buf; |
1330 | while (*p != ' ' && *p != '\0') |
1331 | p++; |
1332 | if (*p != ' ') |
1333 | return 0; |
1334 | while (*p == ' ') |
1335 | p++; |
1336 | return atoi(p); |
1337 | } |
1338 | |
1339 | static JSValue js_std_urlGet(JSContext *ctx, JSValueConst this_val, |
1340 | int argc, JSValueConst *argv) |
1341 | { |
1342 | const char *url; |
1343 | DynBuf cmd_buf; |
1344 | DynBuf data_buf_s, *data_buf = &data_buf_s; |
1345 | DynBuf , * = &header_buf_s; |
1346 | char *buf; |
1347 | size_t i, len; |
1348 | int status; |
1349 | JSValue response = JS_UNDEFINED, ret_obj; |
1350 | JSValueConst options_obj; |
1351 | FILE *f; |
1352 | BOOL binary_flag, full_flag; |
1353 | |
1354 | url = JS_ToCString(ctx, argv[0]); |
1355 | if (!url) |
1356 | return JS_EXCEPTION; |
1357 | |
1358 | binary_flag = FALSE; |
1359 | full_flag = FALSE; |
1360 | |
1361 | if (argc >= 2) { |
1362 | options_obj = argv[1]; |
1363 | |
1364 | if (get_bool_option(ctx, &binary_flag, options_obj, "binary" )) |
1365 | goto fail_obj; |
1366 | |
1367 | if (get_bool_option(ctx, &full_flag, options_obj, "full" )) { |
1368 | fail_obj: |
1369 | JS_FreeCString(ctx, url); |
1370 | return JS_EXCEPTION; |
1371 | } |
1372 | } |
1373 | |
1374 | js_std_dbuf_init(ctx, &cmd_buf); |
1375 | dbuf_printf(&cmd_buf, "%s '" , URL_GET_PROGRAM); |
1376 | for(i = 0; url[i] != '\0'; i++) { |
1377 | unsigned char c = url[i]; |
1378 | switch (c) { |
1379 | case '\'': |
1380 | /* shell single quoted string does not support \' */ |
1381 | dbuf_putstr(&cmd_buf, "'\\''" ); |
1382 | break; |
1383 | case '[': case ']': case '{': case '}': case '\\': |
1384 | /* prevent interpretation by curl as range or set specification */ |
1385 | dbuf_putc(&cmd_buf, '\\'); |
1386 | /* FALLTHROUGH */ |
1387 | default: |
1388 | dbuf_putc(&cmd_buf, c); |
1389 | break; |
1390 | } |
1391 | } |
1392 | JS_FreeCString(ctx, url); |
1393 | dbuf_putstr(&cmd_buf, "'" ); |
1394 | dbuf_putc(&cmd_buf, '\0'); |
1395 | if (dbuf_error(&cmd_buf)) { |
1396 | dbuf_free(&cmd_buf); |
1397 | return JS_EXCEPTION; |
1398 | } |
1399 | // printf("%s\n", (char *)cmd_buf.buf); |
1400 | f = popen((char *)cmd_buf.buf, "r" ); |
1401 | dbuf_free(&cmd_buf); |
1402 | if (!f) { |
1403 | return JS_ThrowTypeError(ctx, "could not start curl" ); |
1404 | } |
1405 | |
1406 | js_std_dbuf_init(ctx, data_buf); |
1407 | js_std_dbuf_init(ctx, header_buf); |
1408 | |
1409 | buf = js_malloc(ctx, URL_GET_BUF_SIZE); |
1410 | if (!buf) |
1411 | goto fail; |
1412 | |
1413 | /* get the HTTP status */ |
1414 | if (http_get_header_line(f, buf, URL_GET_BUF_SIZE, NULL) < 0) { |
1415 | status = 0; |
1416 | goto bad_header; |
1417 | } |
1418 | status = http_get_status(buf); |
1419 | if (!full_flag && !(status >= 200 && status <= 299)) { |
1420 | goto bad_header; |
1421 | } |
1422 | |
1423 | /* wait until there is an empty line */ |
1424 | for(;;) { |
1425 | if (http_get_header_line(f, buf, URL_GET_BUF_SIZE, header_buf) < 0) { |
1426 | : |
1427 | response = JS_NULL; |
1428 | goto done; |
1429 | } |
1430 | if (!strcmp(buf, "\r\n" )) |
1431 | break; |
1432 | } |
1433 | if (dbuf_error(header_buf)) |
1434 | goto fail; |
1435 | header_buf->size -= 2; /* remove the trailing CRLF */ |
1436 | |
1437 | /* download the data */ |
1438 | for(;;) { |
1439 | len = fread(buf, 1, URL_GET_BUF_SIZE, f); |
1440 | if (len == 0) |
1441 | break; |
1442 | dbuf_put(data_buf, (uint8_t *)buf, len); |
1443 | } |
1444 | if (dbuf_error(data_buf)) |
1445 | goto fail; |
1446 | if (binary_flag) { |
1447 | response = JS_NewArrayBufferCopy(ctx, |
1448 | data_buf->buf, data_buf->size); |
1449 | } else { |
1450 | response = JS_NewStringLen(ctx, (char *)data_buf->buf, data_buf->size); |
1451 | } |
1452 | if (JS_IsException(response)) |
1453 | goto fail; |
1454 | done: |
1455 | js_free(ctx, buf); |
1456 | buf = NULL; |
1457 | pclose(f); |
1458 | f = NULL; |
1459 | dbuf_free(data_buf); |
1460 | data_buf = NULL; |
1461 | |
1462 | if (full_flag) { |
1463 | ret_obj = JS_NewObject(ctx); |
1464 | if (JS_IsException(ret_obj)) |
1465 | goto fail; |
1466 | JS_DefinePropertyValueStr(ctx, ret_obj, "response" , |
1467 | response, |
1468 | JS_PROP_C_W_E); |
1469 | if (!JS_IsNull(response)) { |
1470 | JS_DefinePropertyValueStr(ctx, ret_obj, "responseHeaders" , |
1471 | JS_NewStringLen(ctx, (char *)header_buf->buf, |
1472 | header_buf->size), |
1473 | JS_PROP_C_W_E); |
1474 | JS_DefinePropertyValueStr(ctx, ret_obj, "status" , |
1475 | JS_NewInt32(ctx, status), |
1476 | JS_PROP_C_W_E); |
1477 | } |
1478 | } else { |
1479 | ret_obj = response; |
1480 | } |
1481 | dbuf_free(header_buf); |
1482 | return ret_obj; |
1483 | fail: |
1484 | if (f) |
1485 | pclose(f); |
1486 | js_free(ctx, buf); |
1487 | if (data_buf) |
1488 | dbuf_free(data_buf); |
1489 | if (header_buf) |
1490 | dbuf_free(header_buf); |
1491 | JS_FreeValue(ctx, response); |
1492 | return JS_EXCEPTION; |
1493 | } |
1494 | |
1495 | static JSClassDef js_std_file_class = { |
1496 | "FILE" , |
1497 | .finalizer = js_std_file_finalizer, |
1498 | }; |
1499 | |
1500 | static const JSCFunctionListEntry js_std_error_props[] = { |
1501 | /* various errno values */ |
1502 | #define DEF(x) JS_PROP_INT32_DEF(#x, x, JS_PROP_CONFIGURABLE ) |
1503 | DEF(EINVAL), |
1504 | DEF(EIO), |
1505 | DEF(EACCES), |
1506 | DEF(EEXIST), |
1507 | DEF(ENOSPC), |
1508 | DEF(ENOSYS), |
1509 | DEF(EBUSY), |
1510 | DEF(ENOENT), |
1511 | DEF(EPERM), |
1512 | DEF(EPIPE), |
1513 | DEF(EBADF), |
1514 | #undef DEF |
1515 | }; |
1516 | |
1517 | static const JSCFunctionListEntry js_std_funcs[] = { |
1518 | JS_CFUNC_DEF("exit" , 1, js_std_exit ), |
1519 | JS_CFUNC_DEF("gc" , 0, js_std_gc ), |
1520 | JS_CFUNC_DEF("evalScript" , 1, js_evalScript ), |
1521 | JS_CFUNC_DEF("loadScript" , 1, js_loadScript ), |
1522 | JS_CFUNC_DEF("getenv" , 1, js_std_getenv ), |
1523 | JS_CFUNC_DEF("setenv" , 1, js_std_setenv ), |
1524 | JS_CFUNC_DEF("unsetenv" , 1, js_std_unsetenv ), |
1525 | JS_CFUNC_DEF("getenviron" , 1, js_std_getenviron ), |
1526 | JS_CFUNC_DEF("urlGet" , 1, js_std_urlGet ), |
1527 | JS_CFUNC_DEF("loadFile" , 1, js_std_loadFile ), |
1528 | JS_CFUNC_DEF("strerror" , 1, js_std_strerror ), |
1529 | JS_CFUNC_DEF("parseExtJSON" , 1, js_std_parseExtJSON ), |
1530 | |
1531 | /* FILE I/O */ |
1532 | JS_CFUNC_DEF("open" , 2, js_std_open ), |
1533 | JS_CFUNC_DEF("popen" , 2, js_std_popen ), |
1534 | JS_CFUNC_DEF("fdopen" , 2, js_std_fdopen ), |
1535 | JS_CFUNC_DEF("tmpfile" , 0, js_std_tmpfile ), |
1536 | JS_CFUNC_MAGIC_DEF("puts" , 1, js_std_file_puts, 0 ), |
1537 | JS_CFUNC_DEF("printf" , 1, js_std_printf ), |
1538 | JS_CFUNC_DEF("sprintf" , 1, js_std_sprintf ), |
1539 | JS_PROP_INT32_DEF("SEEK_SET" , SEEK_SET, JS_PROP_CONFIGURABLE ), |
1540 | JS_PROP_INT32_DEF("SEEK_CUR" , SEEK_CUR, JS_PROP_CONFIGURABLE ), |
1541 | JS_PROP_INT32_DEF("SEEK_END" , SEEK_END, JS_PROP_CONFIGURABLE ), |
1542 | JS_OBJECT_DEF("Error" , js_std_error_props, countof(js_std_error_props), JS_PROP_CONFIGURABLE), |
1543 | }; |
1544 | |
1545 | static const JSCFunctionListEntry js_std_file_proto_funcs[] = { |
1546 | JS_CFUNC_DEF("close" , 0, js_std_file_close ), |
1547 | JS_CFUNC_MAGIC_DEF("puts" , 1, js_std_file_puts, 1 ), |
1548 | JS_CFUNC_DEF("printf" , 1, js_std_file_printf ), |
1549 | JS_CFUNC_DEF("flush" , 0, js_std_file_flush ), |
1550 | JS_CFUNC_MAGIC_DEF("tell" , 0, js_std_file_tell, 0 ), |
1551 | JS_CFUNC_MAGIC_DEF("tello" , 0, js_std_file_tell, 1 ), |
1552 | JS_CFUNC_DEF("seek" , 2, js_std_file_seek ), |
1553 | JS_CFUNC_DEF("eof" , 0, js_std_file_eof ), |
1554 | JS_CFUNC_DEF("fileno" , 0, js_std_file_fileno ), |
1555 | JS_CFUNC_DEF("error" , 0, js_std_file_error ), |
1556 | JS_CFUNC_DEF("clearerr" , 0, js_std_file_clearerr ), |
1557 | JS_CFUNC_MAGIC_DEF("read" , 3, js_std_file_read_write, 0 ), |
1558 | JS_CFUNC_MAGIC_DEF("write" , 3, js_std_file_read_write, 1 ), |
1559 | JS_CFUNC_DEF("getline" , 0, js_std_file_getline ), |
1560 | JS_CFUNC_DEF("readAsString" , 0, js_std_file_readAsString ), |
1561 | JS_CFUNC_DEF("getByte" , 0, js_std_file_getByte ), |
1562 | JS_CFUNC_DEF("putByte" , 1, js_std_file_putByte ), |
1563 | /* setvbuf, ... */ |
1564 | }; |
1565 | |
1566 | static int js_std_init(JSContext *ctx, JSModuleDef *m) |
1567 | { |
1568 | JSValue proto; |
1569 | |
1570 | /* FILE class */ |
1571 | /* the class ID is created once */ |
1572 | JS_NewClassID(&js_std_file_class_id); |
1573 | /* the class is created once per runtime */ |
1574 | JS_NewClass(JS_GetRuntime(ctx), js_std_file_class_id, &js_std_file_class); |
1575 | proto = JS_NewObject(ctx); |
1576 | JS_SetPropertyFunctionList(ctx, proto, js_std_file_proto_funcs, |
1577 | countof(js_std_file_proto_funcs)); |
1578 | JS_SetClassProto(ctx, js_std_file_class_id, proto); |
1579 | |
1580 | JS_SetModuleExportList(ctx, m, js_std_funcs, |
1581 | countof(js_std_funcs)); |
1582 | JS_SetModuleExport(ctx, m, "in" , js_new_std_file(ctx, stdin, FALSE, FALSE)); |
1583 | JS_SetModuleExport(ctx, m, "out" , js_new_std_file(ctx, stdout, FALSE, FALSE)); |
1584 | JS_SetModuleExport(ctx, m, "err" , js_new_std_file(ctx, stderr, FALSE, FALSE)); |
1585 | return 0; |
1586 | } |
1587 | |
1588 | JSModuleDef *js_init_module_std(JSContext *ctx, const char *module_name) |
1589 | { |
1590 | JSModuleDef *m; |
1591 | m = JS_NewCModule(ctx, module_name, js_std_init); |
1592 | if (!m) |
1593 | return NULL; |
1594 | JS_AddModuleExportList(ctx, m, js_std_funcs, countof(js_std_funcs)); |
1595 | JS_AddModuleExport(ctx, m, "in" ); |
1596 | JS_AddModuleExport(ctx, m, "out" ); |
1597 | JS_AddModuleExport(ctx, m, "err" ); |
1598 | return m; |
1599 | } |
1600 | |
1601 | /**********************************************************/ |
1602 | /* 'os' object */ |
1603 | |
1604 | static JSValue js_os_open(JSContext *ctx, JSValueConst this_val, |
1605 | int argc, JSValueConst *argv) |
1606 | { |
1607 | const char *filename; |
1608 | int flags, mode, ret; |
1609 | |
1610 | filename = JS_ToCString(ctx, argv[0]); |
1611 | if (!filename) |
1612 | return JS_EXCEPTION; |
1613 | if (JS_ToInt32(ctx, &flags, argv[1])) |
1614 | goto fail; |
1615 | if (argc >= 3 && !JS_IsUndefined(argv[2])) { |
1616 | if (JS_ToInt32(ctx, &mode, argv[2])) { |
1617 | fail: |
1618 | JS_FreeCString(ctx, filename); |
1619 | return JS_EXCEPTION; |
1620 | } |
1621 | } else { |
1622 | mode = 0666; |
1623 | } |
1624 | #if defined(_WIN32) |
1625 | /* force binary mode by default */ |
1626 | if (!(flags & O_TEXT)) |
1627 | flags |= O_BINARY; |
1628 | #endif |
1629 | ret = js_get_errno(open(filename, flags, mode)); |
1630 | JS_FreeCString(ctx, filename); |
1631 | return JS_NewInt32(ctx, ret); |
1632 | } |
1633 | |
1634 | static JSValue js_os_close(JSContext *ctx, JSValueConst this_val, |
1635 | int argc, JSValueConst *argv) |
1636 | { |
1637 | int fd, ret; |
1638 | if (JS_ToInt32(ctx, &fd, argv[0])) |
1639 | return JS_EXCEPTION; |
1640 | ret = js_get_errno(close(fd)); |
1641 | return JS_NewInt32(ctx, ret); |
1642 | } |
1643 | |
1644 | static JSValue js_os_seek(JSContext *ctx, JSValueConst this_val, |
1645 | int argc, JSValueConst *argv) |
1646 | { |
1647 | int fd, whence; |
1648 | int64_t pos, ret; |
1649 | BOOL is_bigint; |
1650 | |
1651 | if (JS_ToInt32(ctx, &fd, argv[0])) |
1652 | return JS_EXCEPTION; |
1653 | is_bigint = JS_IsBigInt(ctx, argv[1]); |
1654 | if (JS_ToInt64Ext(ctx, &pos, argv[1])) |
1655 | return JS_EXCEPTION; |
1656 | if (JS_ToInt32(ctx, &whence, argv[2])) |
1657 | return JS_EXCEPTION; |
1658 | ret = lseek(fd, pos, whence); |
1659 | if (ret == -1) |
1660 | ret = -errno; |
1661 | if (is_bigint) |
1662 | return JS_NewBigInt64(ctx, ret); |
1663 | else |
1664 | return JS_NewInt64(ctx, ret); |
1665 | } |
1666 | |
1667 | static JSValue js_os_read_write(JSContext *ctx, JSValueConst this_val, |
1668 | int argc, JSValueConst *argv, int magic) |
1669 | { |
1670 | int fd; |
1671 | uint64_t pos, len; |
1672 | size_t size; |
1673 | ssize_t ret; |
1674 | uint8_t *buf; |
1675 | |
1676 | if (JS_ToInt32(ctx, &fd, argv[0])) |
1677 | return JS_EXCEPTION; |
1678 | if (JS_ToIndex(ctx, &pos, argv[2])) |
1679 | return JS_EXCEPTION; |
1680 | if (JS_ToIndex(ctx, &len, argv[3])) |
1681 | return JS_EXCEPTION; |
1682 | buf = JS_GetArrayBuffer(ctx, &size, argv[1]); |
1683 | if (!buf) |
1684 | return JS_EXCEPTION; |
1685 | if (pos + len > size) |
1686 | return JS_ThrowRangeError(ctx, "read/write array buffer overflow" ); |
1687 | if (magic) |
1688 | ret = js_get_errno(write(fd, buf + pos, len)); |
1689 | else |
1690 | ret = js_get_errno(read(fd, buf + pos, len)); |
1691 | return JS_NewInt64(ctx, ret); |
1692 | } |
1693 | |
1694 | static JSValue js_os_isatty(JSContext *ctx, JSValueConst this_val, |
1695 | int argc, JSValueConst *argv) |
1696 | { |
1697 | int fd; |
1698 | if (JS_ToInt32(ctx, &fd, argv[0])) |
1699 | return JS_EXCEPTION; |
1700 | return JS_NewBool(ctx, isatty(fd)); |
1701 | } |
1702 | |
1703 | #if defined(_WIN32) |
1704 | static JSValue js_os_ttyGetWinSize(JSContext *ctx, JSValueConst this_val, |
1705 | int argc, JSValueConst *argv) |
1706 | { |
1707 | int fd; |
1708 | HANDLE handle; |
1709 | CONSOLE_SCREEN_BUFFER_INFO info; |
1710 | JSValue obj; |
1711 | |
1712 | if (JS_ToInt32(ctx, &fd, argv[0])) |
1713 | return JS_EXCEPTION; |
1714 | handle = (HANDLE)_get_osfhandle(fd); |
1715 | |
1716 | if (!GetConsoleScreenBufferInfo(handle, &info)) |
1717 | return JS_NULL; |
1718 | obj = JS_NewArray(ctx); |
1719 | if (JS_IsException(obj)) |
1720 | return obj; |
1721 | JS_DefinePropertyValueUint32(ctx, obj, 0, JS_NewInt32(ctx, info.dwSize.X), JS_PROP_C_W_E); |
1722 | JS_DefinePropertyValueUint32(ctx, obj, 1, JS_NewInt32(ctx, info.dwSize.Y), JS_PROP_C_W_E); |
1723 | return obj; |
1724 | } |
1725 | |
1726 | /* Windows 10 built-in VT100 emulation */ |
1727 | #define __ENABLE_VIRTUAL_TERMINAL_PROCESSING 0x0004 |
1728 | #define __ENABLE_VIRTUAL_TERMINAL_INPUT 0x0200 |
1729 | |
1730 | static JSValue js_os_ttySetRaw(JSContext *ctx, JSValueConst this_val, |
1731 | int argc, JSValueConst *argv) |
1732 | { |
1733 | int fd; |
1734 | HANDLE handle; |
1735 | |
1736 | if (JS_ToInt32(ctx, &fd, argv[0])) |
1737 | return JS_EXCEPTION; |
1738 | handle = (HANDLE)_get_osfhandle(fd); |
1739 | SetConsoleMode(handle, ENABLE_WINDOW_INPUT | __ENABLE_VIRTUAL_TERMINAL_INPUT); |
1740 | _setmode(fd, _O_BINARY); |
1741 | if (fd == 0) { |
1742 | handle = (HANDLE)_get_osfhandle(1); /* corresponding output */ |
1743 | SetConsoleMode(handle, ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT | __ENABLE_VIRTUAL_TERMINAL_PROCESSING); |
1744 | } |
1745 | return JS_UNDEFINED; |
1746 | } |
1747 | #else |
1748 | static JSValue js_os_ttyGetWinSize(JSContext *ctx, JSValueConst this_val, |
1749 | int argc, JSValueConst *argv) |
1750 | { |
1751 | int fd; |
1752 | struct winsize ws; |
1753 | JSValue obj; |
1754 | |
1755 | if (JS_ToInt32(ctx, &fd, argv[0])) |
1756 | return JS_EXCEPTION; |
1757 | if (ioctl(fd, TIOCGWINSZ, &ws) == 0 && |
1758 | ws.ws_col >= 4 && ws.ws_row >= 4) { |
1759 | obj = JS_NewArray(ctx); |
1760 | if (JS_IsException(obj)) |
1761 | return obj; |
1762 | JS_DefinePropertyValueUint32(ctx, obj, 0, JS_NewInt32(ctx, ws.ws_col), JS_PROP_C_W_E); |
1763 | JS_DefinePropertyValueUint32(ctx, obj, 1, JS_NewInt32(ctx, ws.ws_row), JS_PROP_C_W_E); |
1764 | return obj; |
1765 | } else { |
1766 | return JS_NULL; |
1767 | } |
1768 | } |
1769 | |
1770 | static struct termios oldtty; |
1771 | |
1772 | static void term_exit(void) |
1773 | { |
1774 | tcsetattr(0, TCSANOW, &oldtty); |
1775 | } |
1776 | |
1777 | /* XXX: should add a way to go back to normal mode */ |
1778 | static JSValue js_os_ttySetRaw(JSContext *ctx, JSValueConst this_val, |
1779 | int argc, JSValueConst *argv) |
1780 | { |
1781 | struct termios tty; |
1782 | int fd; |
1783 | |
1784 | if (JS_ToInt32(ctx, &fd, argv[0])) |
1785 | return JS_EXCEPTION; |
1786 | |
1787 | memset(&tty, 0, sizeof(tty)); |
1788 | tcgetattr(fd, &tty); |
1789 | oldtty = tty; |
1790 | |
1791 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
1792 | |INLCR|IGNCR|ICRNL|IXON); |
1793 | tty.c_oflag |= OPOST; |
1794 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
1795 | tty.c_cflag &= ~(CSIZE|PARENB); |
1796 | tty.c_cflag |= CS8; |
1797 | tty.c_cc[VMIN] = 1; |
1798 | tty.c_cc[VTIME] = 0; |
1799 | |
1800 | tcsetattr(fd, TCSANOW, &tty); |
1801 | |
1802 | atexit(term_exit); |
1803 | return JS_UNDEFINED; |
1804 | } |
1805 | |
1806 | #endif /* !_WIN32 */ |
1807 | |
1808 | static JSValue js_os_remove(JSContext *ctx, JSValueConst this_val, |
1809 | int argc, JSValueConst *argv) |
1810 | { |
1811 | const char *filename; |
1812 | int ret; |
1813 | |
1814 | filename = JS_ToCString(ctx, argv[0]); |
1815 | if (!filename) |
1816 | return JS_EXCEPTION; |
1817 | #if defined(_WIN32) |
1818 | { |
1819 | struct stat st; |
1820 | if (stat(filename, &st) == 0 && S_ISDIR(st.st_mode)) { |
1821 | ret = rmdir(filename); |
1822 | } else { |
1823 | ret = unlink(filename); |
1824 | } |
1825 | } |
1826 | #else |
1827 | ret = remove(filename); |
1828 | #endif |
1829 | ret = js_get_errno(ret); |
1830 | JS_FreeCString(ctx, filename); |
1831 | return JS_NewInt32(ctx, ret); |
1832 | } |
1833 | |
1834 | static JSValue js_os_rename(JSContext *ctx, JSValueConst this_val, |
1835 | int argc, JSValueConst *argv) |
1836 | { |
1837 | const char *oldpath, *newpath; |
1838 | int ret; |
1839 | |
1840 | oldpath = JS_ToCString(ctx, argv[0]); |
1841 | if (!oldpath) |
1842 | return JS_EXCEPTION; |
1843 | newpath = JS_ToCString(ctx, argv[1]); |
1844 | if (!newpath) { |
1845 | JS_FreeCString(ctx, oldpath); |
1846 | return JS_EXCEPTION; |
1847 | } |
1848 | ret = js_get_errno(rename(oldpath, newpath)); |
1849 | JS_FreeCString(ctx, oldpath); |
1850 | JS_FreeCString(ctx, newpath); |
1851 | return JS_NewInt32(ctx, ret); |
1852 | } |
1853 | |
1854 | static BOOL is_main_thread(JSRuntime *rt) |
1855 | { |
1856 | JSThreadState *ts = JS_GetRuntimeOpaque(rt); |
1857 | return !ts->recv_pipe; |
1858 | } |
1859 | |
1860 | static JSOSRWHandler *find_rh(JSThreadState *ts, int fd) |
1861 | { |
1862 | JSOSRWHandler *rh; |
1863 | struct list_head *el; |
1864 | |
1865 | list_for_each(el, &ts->os_rw_handlers) { |
1866 | rh = list_entry(el, JSOSRWHandler, link); |
1867 | if (rh->fd == fd) |
1868 | return rh; |
1869 | } |
1870 | return NULL; |
1871 | } |
1872 | |
1873 | static void free_rw_handler(JSRuntime *rt, JSOSRWHandler *rh) |
1874 | { |
1875 | int i; |
1876 | list_del(&rh->link); |
1877 | for(i = 0; i < 2; i++) { |
1878 | JS_FreeValueRT(rt, rh->rw_func[i]); |
1879 | } |
1880 | js_free_rt(rt, rh); |
1881 | } |
1882 | |
1883 | static JSValue js_os_setReadHandler(JSContext *ctx, JSValueConst this_val, |
1884 | int argc, JSValueConst *argv, int magic) |
1885 | { |
1886 | JSRuntime *rt = JS_GetRuntime(ctx); |
1887 | JSThreadState *ts = JS_GetRuntimeOpaque(rt); |
1888 | JSOSRWHandler *rh; |
1889 | int fd; |
1890 | JSValueConst func; |
1891 | |
1892 | if (JS_ToInt32(ctx, &fd, argv[0])) |
1893 | return JS_EXCEPTION; |
1894 | func = argv[1]; |
1895 | if (JS_IsNull(func)) { |
1896 | rh = find_rh(ts, fd); |
1897 | if (rh) { |
1898 | JS_FreeValue(ctx, rh->rw_func[magic]); |
1899 | rh->rw_func[magic] = JS_NULL; |
1900 | if (JS_IsNull(rh->rw_func[0]) && |
1901 | JS_IsNull(rh->rw_func[1])) { |
1902 | /* remove the entry */ |
1903 | free_rw_handler(JS_GetRuntime(ctx), rh); |
1904 | } |
1905 | } |
1906 | } else { |
1907 | if (!JS_IsFunction(ctx, func)) |
1908 | return JS_ThrowTypeError(ctx, "not a function" ); |
1909 | rh = find_rh(ts, fd); |
1910 | if (!rh) { |
1911 | rh = js_mallocz(ctx, sizeof(*rh)); |
1912 | if (!rh) |
1913 | return JS_EXCEPTION; |
1914 | rh->fd = fd; |
1915 | rh->rw_func[0] = JS_NULL; |
1916 | rh->rw_func[1] = JS_NULL; |
1917 | list_add_tail(&rh->link, &ts->os_rw_handlers); |
1918 | } |
1919 | JS_FreeValue(ctx, rh->rw_func[magic]); |
1920 | rh->rw_func[magic] = JS_DupValue(ctx, func); |
1921 | } |
1922 | return JS_UNDEFINED; |
1923 | } |
1924 | |
1925 | static JSOSSignalHandler *find_sh(JSThreadState *ts, int sig_num) |
1926 | { |
1927 | JSOSSignalHandler *sh; |
1928 | struct list_head *el; |
1929 | list_for_each(el, &ts->os_signal_handlers) { |
1930 | sh = list_entry(el, JSOSSignalHandler, link); |
1931 | if (sh->sig_num == sig_num) |
1932 | return sh; |
1933 | } |
1934 | return NULL; |
1935 | } |
1936 | |
1937 | static void free_sh(JSRuntime *rt, JSOSSignalHandler *sh) |
1938 | { |
1939 | list_del(&sh->link); |
1940 | JS_FreeValueRT(rt, sh->func); |
1941 | js_free_rt(rt, sh); |
1942 | } |
1943 | |
1944 | static void os_signal_handler(int sig_num) |
1945 | { |
1946 | os_pending_signals |= ((uint64_t)1 << sig_num); |
1947 | } |
1948 | |
1949 | #if defined(_WIN32) |
1950 | typedef void (*sighandler_t)(int sig_num); |
1951 | #endif |
1952 | |
1953 | static JSValue js_os_signal(JSContext *ctx, JSValueConst this_val, |
1954 | int argc, JSValueConst *argv) |
1955 | { |
1956 | JSRuntime *rt = JS_GetRuntime(ctx); |
1957 | JSThreadState *ts = JS_GetRuntimeOpaque(rt); |
1958 | JSOSSignalHandler *sh; |
1959 | uint32_t sig_num; |
1960 | JSValueConst func; |
1961 | sighandler_t handler; |
1962 | |
1963 | if (!is_main_thread(rt)) |
1964 | return JS_ThrowTypeError(ctx, "signal handler can only be set in the main thread" ); |
1965 | |
1966 | if (JS_ToUint32(ctx, &sig_num, argv[0])) |
1967 | return JS_EXCEPTION; |
1968 | if (sig_num >= 64) |
1969 | return JS_ThrowRangeError(ctx, "invalid signal number" ); |
1970 | func = argv[1]; |
1971 | /* func = null: SIG_DFL, func = undefined, SIG_IGN */ |
1972 | if (JS_IsNull(func) || JS_IsUndefined(func)) { |
1973 | sh = find_sh(ts, sig_num); |
1974 | if (sh) { |
1975 | free_sh(JS_GetRuntime(ctx), sh); |
1976 | } |
1977 | if (JS_IsNull(func)) |
1978 | handler = SIG_DFL; |
1979 | else |
1980 | handler = SIG_IGN; |
1981 | signal(sig_num, handler); |
1982 | } else { |
1983 | if (!JS_IsFunction(ctx, func)) |
1984 | return JS_ThrowTypeError(ctx, "not a function" ); |
1985 | sh = find_sh(ts, sig_num); |
1986 | if (!sh) { |
1987 | sh = js_mallocz(ctx, sizeof(*sh)); |
1988 | if (!sh) |
1989 | return JS_EXCEPTION; |
1990 | sh->sig_num = sig_num; |
1991 | list_add_tail(&sh->link, &ts->os_signal_handlers); |
1992 | } |
1993 | JS_FreeValue(ctx, sh->func); |
1994 | sh->func = JS_DupValue(ctx, func); |
1995 | signal(sig_num, os_signal_handler); |
1996 | } |
1997 | return JS_UNDEFINED; |
1998 | } |
1999 | |
2000 | #if defined(__linux__) || defined(__APPLE__) |
2001 | static int64_t get_time_ms(void) |
2002 | { |
2003 | struct timespec ts; |
2004 | clock_gettime(CLOCK_MONOTONIC, &ts); |
2005 | return (uint64_t)ts.tv_sec * 1000 + (ts.tv_nsec / 1000000); |
2006 | } |
2007 | |
2008 | static int64_t get_time_ns(void) |
2009 | { |
2010 | struct timespec ts; |
2011 | clock_gettime(CLOCK_MONOTONIC, &ts); |
2012 | return (uint64_t)ts.tv_sec * 1000000000 + ts.tv_nsec; |
2013 | } |
2014 | #else |
2015 | /* more portable, but does not work if the date is updated */ |
2016 | static int64_t get_time_ms(void) |
2017 | { |
2018 | struct timeval tv; |
2019 | gettimeofday(&tv, NULL); |
2020 | return (int64_t)tv.tv_sec * 1000 + (tv.tv_usec / 1000); |
2021 | } |
2022 | |
2023 | static int64_t get_time_ns(void) |
2024 | { |
2025 | struct timeval tv; |
2026 | gettimeofday(&tv, NULL); |
2027 | return (int64_t)tv.tv_sec * 1000000000 + (tv.tv_usec * 1000); |
2028 | } |
2029 | #endif |
2030 | |
2031 | static JSValue js_os_now(JSContext *ctx, JSValue this_val, |
2032 | int argc, JSValue *argv) |
2033 | { |
2034 | return JS_NewFloat64(ctx, (double)get_time_ns() / 1e6); |
2035 | } |
2036 | |
2037 | static void free_timer(JSRuntime *rt, JSOSTimer *th) |
2038 | { |
2039 | list_del(&th->link); |
2040 | JS_FreeValueRT(rt, th->func); |
2041 | js_free_rt(rt, th); |
2042 | } |
2043 | |
2044 | static JSValue js_os_setTimeout(JSContext *ctx, JSValueConst this_val, |
2045 | int argc, JSValueConst *argv) |
2046 | { |
2047 | JSRuntime *rt = JS_GetRuntime(ctx); |
2048 | JSThreadState *ts = JS_GetRuntimeOpaque(rt); |
2049 | int64_t delay; |
2050 | JSValueConst func; |
2051 | JSOSTimer *th; |
2052 | |
2053 | func = argv[0]; |
2054 | if (!JS_IsFunction(ctx, func)) |
2055 | return JS_ThrowTypeError(ctx, "not a function" ); |
2056 | if (JS_ToInt64(ctx, &delay, argv[1])) |
2057 | return JS_EXCEPTION; |
2058 | th = js_mallocz(ctx, sizeof(*th)); |
2059 | if (!th) |
2060 | return JS_EXCEPTION; |
2061 | th->timer_id = ts->next_timer_id; |
2062 | if (ts->next_timer_id == INT32_MAX) |
2063 | ts->next_timer_id = 1; |
2064 | else |
2065 | ts->next_timer_id++; |
2066 | th->timeout = get_time_ms() + delay; |
2067 | th->func = JS_DupValue(ctx, func); |
2068 | list_add_tail(&th->link, &ts->os_timers); |
2069 | return JS_NewInt32(ctx, th->timer_id); |
2070 | } |
2071 | |
2072 | static JSOSTimer *find_timer_by_id(JSThreadState *ts, int timer_id) |
2073 | { |
2074 | struct list_head *el; |
2075 | if (timer_id <= 0) |
2076 | return NULL; |
2077 | list_for_each(el, &ts->os_timers) { |
2078 | JSOSTimer *th = list_entry(el, JSOSTimer, link); |
2079 | if (th->timer_id == timer_id) |
2080 | return th; |
2081 | } |
2082 | return NULL; |
2083 | } |
2084 | |
2085 | static JSValue js_os_clearTimeout(JSContext *ctx, JSValueConst this_val, |
2086 | int argc, JSValueConst *argv) |
2087 | { |
2088 | JSRuntime *rt = JS_GetRuntime(ctx); |
2089 | JSThreadState *ts = JS_GetRuntimeOpaque(rt); |
2090 | JSOSTimer *th; |
2091 | int timer_id; |
2092 | |
2093 | if (JS_ToInt32(ctx, &timer_id, argv[0])) |
2094 | return JS_EXCEPTION; |
2095 | th = find_timer_by_id(ts, timer_id); |
2096 | if (!th) |
2097 | return JS_UNDEFINED; |
2098 | free_timer(rt, th); |
2099 | return JS_UNDEFINED; |
2100 | } |
2101 | |
2102 | /* return a promise */ |
2103 | static JSValue js_os_sleepAsync(JSContext *ctx, JSValueConst this_val, |
2104 | int argc, JSValueConst *argv) |
2105 | { |
2106 | JSRuntime *rt = JS_GetRuntime(ctx); |
2107 | JSThreadState *ts = JS_GetRuntimeOpaque(rt); |
2108 | int64_t delay; |
2109 | JSOSTimer *th; |
2110 | JSValue promise, resolving_funcs[2]; |
2111 | |
2112 | if (JS_ToInt64(ctx, &delay, argv[0])) |
2113 | return JS_EXCEPTION; |
2114 | promise = JS_NewPromiseCapability(ctx, resolving_funcs); |
2115 | if (JS_IsException(promise)) |
2116 | return JS_EXCEPTION; |
2117 | |
2118 | th = js_mallocz(ctx, sizeof(*th)); |
2119 | if (!th) { |
2120 | JS_FreeValue(ctx, promise); |
2121 | JS_FreeValue(ctx, resolving_funcs[0]); |
2122 | JS_FreeValue(ctx, resolving_funcs[1]); |
2123 | return JS_EXCEPTION; |
2124 | } |
2125 | th->timer_id = -1; |
2126 | th->timeout = get_time_ms() + delay; |
2127 | th->func = JS_DupValue(ctx, resolving_funcs[0]); |
2128 | list_add_tail(&th->link, &ts->os_timers); |
2129 | JS_FreeValue(ctx, resolving_funcs[0]); |
2130 | JS_FreeValue(ctx, resolving_funcs[1]); |
2131 | return promise; |
2132 | } |
2133 | |
2134 | static void call_handler(JSContext *ctx, JSValueConst func) |
2135 | { |
2136 | JSValue ret, func1; |
2137 | /* 'func' might be destroyed when calling itself (if it frees the |
2138 | handler), so must take extra care */ |
2139 | func1 = JS_DupValue(ctx, func); |
2140 | ret = JS_Call(ctx, func1, JS_UNDEFINED, 0, NULL); |
2141 | JS_FreeValue(ctx, func1); |
2142 | if (JS_IsException(ret)) |
2143 | js_std_dump_error(ctx); |
2144 | JS_FreeValue(ctx, ret); |
2145 | } |
2146 | |
2147 | #ifdef USE_WORKER |
2148 | |
2149 | #ifdef _WIN32 |
2150 | |
2151 | static int js_waker_init(JSWaker *w) |
2152 | { |
2153 | w->handle = CreateEvent(NULL, TRUE, FALSE, NULL); |
2154 | return w->handle ? 0 : -1; |
2155 | } |
2156 | |
2157 | static void js_waker_signal(JSWaker *w) |
2158 | { |
2159 | SetEvent(w->handle); |
2160 | } |
2161 | |
2162 | static void js_waker_clear(JSWaker *w) |
2163 | { |
2164 | ResetEvent(w->handle); |
2165 | } |
2166 | |
2167 | static void js_waker_close(JSWaker *w) |
2168 | { |
2169 | CloseHandle(w->handle); |
2170 | w->handle = INVALID_HANDLE_VALUE; |
2171 | } |
2172 | |
2173 | #else // !_WIN32 |
2174 | |
2175 | static int js_waker_init(JSWaker *w) |
2176 | { |
2177 | int fds[2]; |
2178 | |
2179 | if (pipe(fds) < 0) |
2180 | return -1; |
2181 | w->read_fd = fds[0]; |
2182 | w->write_fd = fds[1]; |
2183 | return 0; |
2184 | } |
2185 | |
2186 | static void js_waker_signal(JSWaker *w) |
2187 | { |
2188 | int ret; |
2189 | |
2190 | for(;;) { |
2191 | ret = write(w->write_fd, "" , 1); |
2192 | if (ret == 1) |
2193 | break; |
2194 | if (ret < 0 && (errno != EAGAIN || errno != EINTR)) |
2195 | break; |
2196 | } |
2197 | } |
2198 | |
2199 | static void js_waker_clear(JSWaker *w) |
2200 | { |
2201 | uint8_t buf[16]; |
2202 | int ret; |
2203 | |
2204 | for(;;) { |
2205 | ret = read(w->read_fd, buf, sizeof(buf)); |
2206 | if (ret >= 0) |
2207 | break; |
2208 | if (errno != EAGAIN && errno != EINTR) |
2209 | break; |
2210 | } |
2211 | } |
2212 | |
2213 | static void js_waker_close(JSWaker *w) |
2214 | { |
2215 | close(w->read_fd); |
2216 | close(w->write_fd); |
2217 | w->read_fd = -1; |
2218 | w->write_fd = -1; |
2219 | } |
2220 | |
2221 | #endif // _WIN32 |
2222 | |
2223 | static void js_free_message(JSWorkerMessage *msg); |
2224 | |
2225 | /* return 1 if a message was handled, 0 if no message */ |
2226 | static int handle_posted_message(JSRuntime *rt, JSContext *ctx, |
2227 | JSWorkerMessageHandler *port) |
2228 | { |
2229 | JSWorkerMessagePipe *ps = port->recv_pipe; |
2230 | int ret; |
2231 | struct list_head *el; |
2232 | JSWorkerMessage *msg; |
2233 | JSValue obj, data_obj, func, retval; |
2234 | |
2235 | pthread_mutex_lock(&ps->mutex); |
2236 | if (!list_empty(&ps->msg_queue)) { |
2237 | el = ps->msg_queue.next; |
2238 | msg = list_entry(el, JSWorkerMessage, link); |
2239 | |
2240 | /* remove the message from the queue */ |
2241 | list_del(&msg->link); |
2242 | |
2243 | if (list_empty(&ps->msg_queue)) |
2244 | js_waker_clear(&ps->waker); |
2245 | |
2246 | pthread_mutex_unlock(&ps->mutex); |
2247 | |
2248 | data_obj = JS_ReadObject(ctx, msg->data, msg->data_len, |
2249 | JS_READ_OBJ_SAB | JS_READ_OBJ_REFERENCE); |
2250 | |
2251 | js_free_message(msg); |
2252 | |
2253 | if (JS_IsException(data_obj)) |
2254 | goto fail; |
2255 | obj = JS_NewObject(ctx); |
2256 | if (JS_IsException(obj)) { |
2257 | JS_FreeValue(ctx, data_obj); |
2258 | goto fail; |
2259 | } |
2260 | JS_DefinePropertyValueStr(ctx, obj, "data" , data_obj, JS_PROP_C_W_E); |
2261 | |
2262 | /* 'func' might be destroyed when calling itself (if it frees the |
2263 | handler), so must take extra care */ |
2264 | func = JS_DupValue(ctx, port->on_message_func); |
2265 | retval = JS_Call(ctx, func, JS_UNDEFINED, 1, (JSValueConst *)&obj); |
2266 | JS_FreeValue(ctx, obj); |
2267 | JS_FreeValue(ctx, func); |
2268 | if (JS_IsException(retval)) { |
2269 | fail: |
2270 | js_std_dump_error(ctx); |
2271 | } else { |
2272 | JS_FreeValue(ctx, retval); |
2273 | } |
2274 | ret = 1; |
2275 | } else { |
2276 | pthread_mutex_unlock(&ps->mutex); |
2277 | ret = 0; |
2278 | } |
2279 | return ret; |
2280 | } |
2281 | #else |
2282 | static int handle_posted_message(JSRuntime *rt, JSContext *ctx, |
2283 | JSWorkerMessageHandler *port) |
2284 | { |
2285 | return 0; |
2286 | } |
2287 | #endif /* !USE_WORKER */ |
2288 | |
2289 | #if defined(_WIN32) |
2290 | |
2291 | static int js_os_poll(JSContext *ctx) |
2292 | { |
2293 | JSRuntime *rt = JS_GetRuntime(ctx); |
2294 | JSThreadState *ts = JS_GetRuntimeOpaque(rt); |
2295 | int min_delay, count; |
2296 | int64_t cur_time, delay; |
2297 | JSOSRWHandler *rh; |
2298 | struct list_head *el; |
2299 | HANDLE handles[MAXIMUM_WAIT_OBJECTS]; // 64 |
2300 | |
2301 | /* XXX: handle signals if useful */ |
2302 | |
2303 | if (list_empty(&ts->os_rw_handlers) && list_empty(&ts->os_timers) && |
2304 | list_empty(&ts->port_list)) { |
2305 | return -1; /* no more events */ |
2306 | } |
2307 | |
2308 | if (!list_empty(&ts->os_timers)) { |
2309 | cur_time = get_time_ms(); |
2310 | min_delay = 10000; |
2311 | list_for_each(el, &ts->os_timers) { |
2312 | JSOSTimer *th = list_entry(el, JSOSTimer, link); |
2313 | delay = th->timeout - cur_time; |
2314 | if (delay <= 0) { |
2315 | JSValue func; |
2316 | /* the timer expired */ |
2317 | func = th->func; |
2318 | th->func = JS_UNDEFINED; |
2319 | free_timer(rt, th); |
2320 | call_handler(ctx, func); |
2321 | JS_FreeValue(ctx, func); |
2322 | return 0; |
2323 | } else if (delay < min_delay) { |
2324 | min_delay = delay; |
2325 | } |
2326 | } |
2327 | } else { |
2328 | min_delay = -1; |
2329 | } |
2330 | |
2331 | count = 0; |
2332 | list_for_each(el, &ts->os_rw_handlers) { |
2333 | rh = list_entry(el, JSOSRWHandler, link); |
2334 | if (rh->fd == 0 && !JS_IsNull(rh->rw_func[0])) { |
2335 | handles[count++] = (HANDLE)_get_osfhandle(rh->fd); // stdin |
2336 | if (count == (int)countof(handles)) |
2337 | break; |
2338 | } |
2339 | } |
2340 | |
2341 | list_for_each(el, &ts->port_list) { |
2342 | JSWorkerMessageHandler *port = list_entry(el, JSWorkerMessageHandler, link); |
2343 | if (JS_IsNull(port->on_message_func)) |
2344 | continue; |
2345 | handles[count++] = port->recv_pipe->waker.handle; |
2346 | if (count == (int)countof(handles)) |
2347 | break; |
2348 | } |
2349 | |
2350 | if (count > 0) { |
2351 | DWORD ret, timeout = INFINITE; |
2352 | if (min_delay != -1) |
2353 | timeout = min_delay; |
2354 | ret = WaitForMultipleObjects(count, handles, FALSE, timeout); |
2355 | |
2356 | if (ret < count) { |
2357 | list_for_each(el, &ts->os_rw_handlers) { |
2358 | rh = list_entry(el, JSOSRWHandler, link); |
2359 | if (rh->fd == 0 && !JS_IsNull(rh->rw_func[0])) { |
2360 | call_handler(ctx, rh->rw_func[0]); |
2361 | /* must stop because the list may have been modified */ |
2362 | goto done; |
2363 | } |
2364 | } |
2365 | |
2366 | list_for_each(el, &ts->port_list) { |
2367 | JSWorkerMessageHandler *port = list_entry(el, JSWorkerMessageHandler, link); |
2368 | if (!JS_IsNull(port->on_message_func)) { |
2369 | JSWorkerMessagePipe *ps = port->recv_pipe; |
2370 | if (ps->waker.handle == handles[ret]) { |
2371 | if (handle_posted_message(rt, ctx, port)) |
2372 | goto done; |
2373 | } |
2374 | } |
2375 | } |
2376 | } |
2377 | } else { |
2378 | Sleep(min_delay); |
2379 | } |
2380 | done: |
2381 | return 0; |
2382 | } |
2383 | |
2384 | #else |
2385 | |
2386 | static int js_os_poll(JSContext *ctx) |
2387 | { |
2388 | JSRuntime *rt = JS_GetRuntime(ctx); |
2389 | JSThreadState *ts = JS_GetRuntimeOpaque(rt); |
2390 | int ret, fd_max, min_delay; |
2391 | int64_t cur_time, delay; |
2392 | fd_set rfds, wfds; |
2393 | JSOSRWHandler *rh; |
2394 | struct list_head *el; |
2395 | struct timeval tv, *tvp; |
2396 | |
2397 | /* only check signals in the main thread */ |
2398 | if (!ts->recv_pipe && |
2399 | unlikely(os_pending_signals != 0)) { |
2400 | JSOSSignalHandler *sh; |
2401 | uint64_t mask; |
2402 | |
2403 | list_for_each(el, &ts->os_signal_handlers) { |
2404 | sh = list_entry(el, JSOSSignalHandler, link); |
2405 | mask = (uint64_t)1 << sh->sig_num; |
2406 | if (os_pending_signals & mask) { |
2407 | os_pending_signals &= ~mask; |
2408 | call_handler(ctx, sh->func); |
2409 | return 0; |
2410 | } |
2411 | } |
2412 | } |
2413 | |
2414 | if (list_empty(&ts->os_rw_handlers) && list_empty(&ts->os_timers) && |
2415 | list_empty(&ts->port_list)) |
2416 | return -1; /* no more events */ |
2417 | |
2418 | if (!list_empty(&ts->os_timers)) { |
2419 | cur_time = get_time_ms(); |
2420 | min_delay = 10000; |
2421 | list_for_each(el, &ts->os_timers) { |
2422 | JSOSTimer *th = list_entry(el, JSOSTimer, link); |
2423 | delay = th->timeout - cur_time; |
2424 | if (delay <= 0) { |
2425 | JSValue func; |
2426 | /* the timer expired */ |
2427 | func = th->func; |
2428 | th->func = JS_UNDEFINED; |
2429 | free_timer(rt, th); |
2430 | call_handler(ctx, func); |
2431 | JS_FreeValue(ctx, func); |
2432 | return 0; |
2433 | } else if (delay < min_delay) { |
2434 | min_delay = delay; |
2435 | } |
2436 | } |
2437 | tv.tv_sec = min_delay / 1000; |
2438 | tv.tv_usec = (min_delay % 1000) * 1000; |
2439 | tvp = &tv; |
2440 | } else { |
2441 | tvp = NULL; |
2442 | } |
2443 | |
2444 | FD_ZERO(&rfds); |
2445 | FD_ZERO(&wfds); |
2446 | fd_max = -1; |
2447 | list_for_each(el, &ts->os_rw_handlers) { |
2448 | rh = list_entry(el, JSOSRWHandler, link); |
2449 | fd_max = max_int(fd_max, rh->fd); |
2450 | if (!JS_IsNull(rh->rw_func[0])) |
2451 | FD_SET(rh->fd, &rfds); |
2452 | if (!JS_IsNull(rh->rw_func[1])) |
2453 | FD_SET(rh->fd, &wfds); |
2454 | } |
2455 | |
2456 | list_for_each(el, &ts->port_list) { |
2457 | JSWorkerMessageHandler *port = list_entry(el, JSWorkerMessageHandler, link); |
2458 | if (!JS_IsNull(port->on_message_func)) { |
2459 | JSWorkerMessagePipe *ps = port->recv_pipe; |
2460 | fd_max = max_int(fd_max, ps->waker.read_fd); |
2461 | FD_SET(ps->waker.read_fd, &rfds); |
2462 | } |
2463 | } |
2464 | |
2465 | ret = select(fd_max + 1, &rfds, &wfds, NULL, tvp); |
2466 | if (ret > 0) { |
2467 | list_for_each(el, &ts->os_rw_handlers) { |
2468 | rh = list_entry(el, JSOSRWHandler, link); |
2469 | if (!JS_IsNull(rh->rw_func[0]) && |
2470 | FD_ISSET(rh->fd, &rfds)) { |
2471 | call_handler(ctx, rh->rw_func[0]); |
2472 | /* must stop because the list may have been modified */ |
2473 | goto done; |
2474 | } |
2475 | if (!JS_IsNull(rh->rw_func[1]) && |
2476 | FD_ISSET(rh->fd, &wfds)) { |
2477 | call_handler(ctx, rh->rw_func[1]); |
2478 | /* must stop because the list may have been modified */ |
2479 | goto done; |
2480 | } |
2481 | } |
2482 | |
2483 | list_for_each(el, &ts->port_list) { |
2484 | JSWorkerMessageHandler *port = list_entry(el, JSWorkerMessageHandler, link); |
2485 | if (!JS_IsNull(port->on_message_func)) { |
2486 | JSWorkerMessagePipe *ps = port->recv_pipe; |
2487 | if (FD_ISSET(ps->waker.read_fd, &rfds)) { |
2488 | if (handle_posted_message(rt, ctx, port)) |
2489 | goto done; |
2490 | } |
2491 | } |
2492 | } |
2493 | } |
2494 | done: |
2495 | return 0; |
2496 | } |
2497 | #endif /* !_WIN32 */ |
2498 | |
2499 | static JSValue make_obj_error(JSContext *ctx, |
2500 | JSValue obj, |
2501 | int err) |
2502 | { |
2503 | JSValue arr; |
2504 | if (JS_IsException(obj)) |
2505 | return obj; |
2506 | arr = JS_NewArray(ctx); |
2507 | if (JS_IsException(arr)) |
2508 | return JS_EXCEPTION; |
2509 | JS_DefinePropertyValueUint32(ctx, arr, 0, obj, |
2510 | JS_PROP_C_W_E); |
2511 | JS_DefinePropertyValueUint32(ctx, arr, 1, JS_NewInt32(ctx, err), |
2512 | JS_PROP_C_W_E); |
2513 | return arr; |
2514 | } |
2515 | |
2516 | static JSValue make_string_error(JSContext *ctx, |
2517 | const char *buf, |
2518 | int err) |
2519 | { |
2520 | return make_obj_error(ctx, JS_NewString(ctx, buf), err); |
2521 | } |
2522 | |
2523 | /* return [cwd, errorcode] */ |
2524 | static JSValue js_os_getcwd(JSContext *ctx, JSValueConst this_val, |
2525 | int argc, JSValueConst *argv) |
2526 | { |
2527 | char buf[PATH_MAX]; |
2528 | int err; |
2529 | |
2530 | if (!getcwd(buf, sizeof(buf))) { |
2531 | buf[0] = '\0'; |
2532 | err = errno; |
2533 | } else { |
2534 | err = 0; |
2535 | } |
2536 | return make_string_error(ctx, buf, err); |
2537 | } |
2538 | |
2539 | static JSValue js_os_chdir(JSContext *ctx, JSValueConst this_val, |
2540 | int argc, JSValueConst *argv) |
2541 | { |
2542 | const char *target; |
2543 | int err; |
2544 | |
2545 | target = JS_ToCString(ctx, argv[0]); |
2546 | if (!target) |
2547 | return JS_EXCEPTION; |
2548 | err = js_get_errno(chdir(target)); |
2549 | JS_FreeCString(ctx, target); |
2550 | return JS_NewInt32(ctx, err); |
2551 | } |
2552 | |
2553 | static JSValue js_os_mkdir(JSContext *ctx, JSValueConst this_val, |
2554 | int argc, JSValueConst *argv) |
2555 | { |
2556 | int mode, ret; |
2557 | const char *path; |
2558 | |
2559 | if (argc >= 2) { |
2560 | if (JS_ToInt32(ctx, &mode, argv[1])) |
2561 | return JS_EXCEPTION; |
2562 | } else { |
2563 | mode = 0777; |
2564 | } |
2565 | path = JS_ToCString(ctx, argv[0]); |
2566 | if (!path) |
2567 | return JS_EXCEPTION; |
2568 | #if defined(_WIN32) |
2569 | (void)mode; |
2570 | ret = js_get_errno(mkdir(path)); |
2571 | #else |
2572 | ret = js_get_errno(mkdir(path, mode)); |
2573 | #endif |
2574 | JS_FreeCString(ctx, path); |
2575 | return JS_NewInt32(ctx, ret); |
2576 | } |
2577 | |
2578 | /* return [array, errorcode] */ |
2579 | static JSValue js_os_readdir(JSContext *ctx, JSValueConst this_val, |
2580 | int argc, JSValueConst *argv) |
2581 | { |
2582 | const char *path; |
2583 | DIR *f; |
2584 | struct dirent *d; |
2585 | JSValue obj; |
2586 | int err; |
2587 | uint32_t len; |
2588 | |
2589 | path = JS_ToCString(ctx, argv[0]); |
2590 | if (!path) |
2591 | return JS_EXCEPTION; |
2592 | obj = JS_NewArray(ctx); |
2593 | if (JS_IsException(obj)) { |
2594 | JS_FreeCString(ctx, path); |
2595 | return JS_EXCEPTION; |
2596 | } |
2597 | f = opendir(path); |
2598 | if (!f) |
2599 | err = errno; |
2600 | else |
2601 | err = 0; |
2602 | JS_FreeCString(ctx, path); |
2603 | if (!f) |
2604 | goto done; |
2605 | len = 0; |
2606 | for(;;) { |
2607 | errno = 0; |
2608 | d = readdir(f); |
2609 | if (!d) { |
2610 | err = errno; |
2611 | break; |
2612 | } |
2613 | JS_DefinePropertyValueUint32(ctx, obj, len++, |
2614 | JS_NewString(ctx, d->d_name), |
2615 | JS_PROP_C_W_E); |
2616 | } |
2617 | closedir(f); |
2618 | done: |
2619 | return make_obj_error(ctx, obj, err); |
2620 | } |
2621 | |
2622 | #if !defined(_WIN32) |
2623 | static int64_t timespec_to_ms(const struct timespec *tv) |
2624 | { |
2625 | return (int64_t)tv->tv_sec * 1000 + (tv->tv_nsec / 1000000); |
2626 | } |
2627 | #endif |
2628 | |
2629 | /* return [obj, errcode] */ |
2630 | static JSValue js_os_stat(JSContext *ctx, JSValueConst this_val, |
2631 | int argc, JSValueConst *argv, int is_lstat) |
2632 | { |
2633 | const char *path; |
2634 | int err, res; |
2635 | struct stat st; |
2636 | JSValue obj; |
2637 | |
2638 | path = JS_ToCString(ctx, argv[0]); |
2639 | if (!path) |
2640 | return JS_EXCEPTION; |
2641 | #if defined(_WIN32) |
2642 | res = stat(path, &st); |
2643 | #else |
2644 | if (is_lstat) |
2645 | res = lstat(path, &st); |
2646 | else |
2647 | res = stat(path, &st); |
2648 | #endif |
2649 | if (res < 0) |
2650 | err = errno; |
2651 | else |
2652 | err = 0; |
2653 | JS_FreeCString(ctx, path); |
2654 | if (res < 0) { |
2655 | obj = JS_NULL; |
2656 | } else { |
2657 | obj = JS_NewObject(ctx); |
2658 | if (JS_IsException(obj)) |
2659 | return JS_EXCEPTION; |
2660 | JS_DefinePropertyValueStr(ctx, obj, "dev" , |
2661 | JS_NewInt64(ctx, st.st_dev), |
2662 | JS_PROP_C_W_E); |
2663 | JS_DefinePropertyValueStr(ctx, obj, "ino" , |
2664 | JS_NewInt64(ctx, st.st_ino), |
2665 | JS_PROP_C_W_E); |
2666 | JS_DefinePropertyValueStr(ctx, obj, "mode" , |
2667 | JS_NewInt32(ctx, st.st_mode), |
2668 | JS_PROP_C_W_E); |
2669 | JS_DefinePropertyValueStr(ctx, obj, "nlink" , |
2670 | JS_NewInt64(ctx, st.st_nlink), |
2671 | JS_PROP_C_W_E); |
2672 | JS_DefinePropertyValueStr(ctx, obj, "uid" , |
2673 | JS_NewInt64(ctx, st.st_uid), |
2674 | JS_PROP_C_W_E); |
2675 | JS_DefinePropertyValueStr(ctx, obj, "gid" , |
2676 | JS_NewInt64(ctx, st.st_gid), |
2677 | JS_PROP_C_W_E); |
2678 | JS_DefinePropertyValueStr(ctx, obj, "rdev" , |
2679 | JS_NewInt64(ctx, st.st_rdev), |
2680 | JS_PROP_C_W_E); |
2681 | JS_DefinePropertyValueStr(ctx, obj, "size" , |
2682 | JS_NewInt64(ctx, st.st_size), |
2683 | JS_PROP_C_W_E); |
2684 | #if !defined(_WIN32) |
2685 | JS_DefinePropertyValueStr(ctx, obj, "blocks" , |
2686 | JS_NewInt64(ctx, st.st_blocks), |
2687 | JS_PROP_C_W_E); |
2688 | #endif |
2689 | #if defined(_WIN32) |
2690 | JS_DefinePropertyValueStr(ctx, obj, "atime" , |
2691 | JS_NewInt64(ctx, (int64_t)st.st_atime * 1000), |
2692 | JS_PROP_C_W_E); |
2693 | JS_DefinePropertyValueStr(ctx, obj, "mtime" , |
2694 | JS_NewInt64(ctx, (int64_t)st.st_mtime * 1000), |
2695 | JS_PROP_C_W_E); |
2696 | JS_DefinePropertyValueStr(ctx, obj, "ctime" , |
2697 | JS_NewInt64(ctx, (int64_t)st.st_ctime * 1000), |
2698 | JS_PROP_C_W_E); |
2699 | #elif defined(__APPLE__) |
2700 | JS_DefinePropertyValueStr(ctx, obj, "atime" , |
2701 | JS_NewInt64(ctx, timespec_to_ms(&st.st_atimespec)), |
2702 | JS_PROP_C_W_E); |
2703 | JS_DefinePropertyValueStr(ctx, obj, "mtime" , |
2704 | JS_NewInt64(ctx, timespec_to_ms(&st.st_mtimespec)), |
2705 | JS_PROP_C_W_E); |
2706 | JS_DefinePropertyValueStr(ctx, obj, "ctime" , |
2707 | JS_NewInt64(ctx, timespec_to_ms(&st.st_ctimespec)), |
2708 | JS_PROP_C_W_E); |
2709 | #else |
2710 | JS_DefinePropertyValueStr(ctx, obj, "atime" , |
2711 | JS_NewInt64(ctx, timespec_to_ms(&st.st_atim)), |
2712 | JS_PROP_C_W_E); |
2713 | JS_DefinePropertyValueStr(ctx, obj, "mtime" , |
2714 | JS_NewInt64(ctx, timespec_to_ms(&st.st_mtim)), |
2715 | JS_PROP_C_W_E); |
2716 | JS_DefinePropertyValueStr(ctx, obj, "ctime" , |
2717 | JS_NewInt64(ctx, timespec_to_ms(&st.st_ctim)), |
2718 | JS_PROP_C_W_E); |
2719 | #endif |
2720 | } |
2721 | return make_obj_error(ctx, obj, err); |
2722 | } |
2723 | |
2724 | #if !defined(_WIN32) |
2725 | static void ms_to_timeval(struct timeval *tv, uint64_t v) |
2726 | { |
2727 | tv->tv_sec = v / 1000; |
2728 | tv->tv_usec = (v % 1000) * 1000; |
2729 | } |
2730 | #endif |
2731 | |
2732 | static JSValue js_os_utimes(JSContext *ctx, JSValueConst this_val, |
2733 | int argc, JSValueConst *argv) |
2734 | { |
2735 | const char *path; |
2736 | int64_t atime, mtime; |
2737 | int ret; |
2738 | |
2739 | if (JS_ToInt64(ctx, &atime, argv[1])) |
2740 | return JS_EXCEPTION; |
2741 | if (JS_ToInt64(ctx, &mtime, argv[2])) |
2742 | return JS_EXCEPTION; |
2743 | path = JS_ToCString(ctx, argv[0]); |
2744 | if (!path) |
2745 | return JS_EXCEPTION; |
2746 | #if defined(_WIN32) |
2747 | { |
2748 | struct _utimbuf times; |
2749 | times.actime = atime / 1000; |
2750 | times.modtime = mtime / 1000; |
2751 | ret = js_get_errno(_utime(path, ×)); |
2752 | } |
2753 | #else |
2754 | { |
2755 | struct timeval times[2]; |
2756 | ms_to_timeval(×[0], atime); |
2757 | ms_to_timeval(×[1], mtime); |
2758 | ret = js_get_errno(utimes(path, times)); |
2759 | } |
2760 | #endif |
2761 | JS_FreeCString(ctx, path); |
2762 | return JS_NewInt32(ctx, ret); |
2763 | } |
2764 | |
2765 | /* sleep(delay_ms) */ |
2766 | static JSValue js_os_sleep(JSContext *ctx, JSValueConst this_val, |
2767 | int argc, JSValueConst *argv) |
2768 | { |
2769 | int64_t delay; |
2770 | int ret; |
2771 | |
2772 | if (JS_ToInt64(ctx, &delay, argv[0])) |
2773 | return JS_EXCEPTION; |
2774 | if (delay < 0) |
2775 | delay = 0; |
2776 | #if defined(_WIN32) |
2777 | { |
2778 | if (delay > INT32_MAX) |
2779 | delay = INT32_MAX; |
2780 | Sleep(delay); |
2781 | ret = 0; |
2782 | } |
2783 | #else |
2784 | { |
2785 | struct timespec ts; |
2786 | |
2787 | ts.tv_sec = delay / 1000; |
2788 | ts.tv_nsec = (delay % 1000) * 1000000; |
2789 | ret = js_get_errno(nanosleep(&ts, NULL)); |
2790 | } |
2791 | #endif |
2792 | return JS_NewInt32(ctx, ret); |
2793 | } |
2794 | |
2795 | #if defined(_WIN32) |
2796 | static char *realpath(const char *path, char *buf) |
2797 | { |
2798 | if (!_fullpath(buf, path, PATH_MAX)) { |
2799 | errno = ENOENT; |
2800 | return NULL; |
2801 | } else { |
2802 | return buf; |
2803 | } |
2804 | } |
2805 | #endif |
2806 | |
2807 | /* return [path, errorcode] */ |
2808 | static JSValue js_os_realpath(JSContext *ctx, JSValueConst this_val, |
2809 | int argc, JSValueConst *argv) |
2810 | { |
2811 | const char *path; |
2812 | char buf[PATH_MAX], *res; |
2813 | int err; |
2814 | |
2815 | path = JS_ToCString(ctx, argv[0]); |
2816 | if (!path) |
2817 | return JS_EXCEPTION; |
2818 | res = realpath(path, buf); |
2819 | JS_FreeCString(ctx, path); |
2820 | if (!res) { |
2821 | buf[0] = '\0'; |
2822 | err = errno; |
2823 | } else { |
2824 | err = 0; |
2825 | } |
2826 | return make_string_error(ctx, buf, err); |
2827 | } |
2828 | |
2829 | #if !defined(_WIN32) |
2830 | static JSValue js_os_symlink(JSContext *ctx, JSValueConst this_val, |
2831 | int argc, JSValueConst *argv) |
2832 | { |
2833 | const char *target, *linkpath; |
2834 | int err; |
2835 | |
2836 | target = JS_ToCString(ctx, argv[0]); |
2837 | if (!target) |
2838 | return JS_EXCEPTION; |
2839 | linkpath = JS_ToCString(ctx, argv[1]); |
2840 | if (!linkpath) { |
2841 | JS_FreeCString(ctx, target); |
2842 | return JS_EXCEPTION; |
2843 | } |
2844 | err = js_get_errno(symlink(target, linkpath)); |
2845 | JS_FreeCString(ctx, target); |
2846 | JS_FreeCString(ctx, linkpath); |
2847 | return JS_NewInt32(ctx, err); |
2848 | } |
2849 | |
2850 | /* return [path, errorcode] */ |
2851 | static JSValue js_os_readlink(JSContext *ctx, JSValueConst this_val, |
2852 | int argc, JSValueConst *argv) |
2853 | { |
2854 | const char *path; |
2855 | char buf[PATH_MAX]; |
2856 | int err; |
2857 | ssize_t res; |
2858 | |
2859 | path = JS_ToCString(ctx, argv[0]); |
2860 | if (!path) |
2861 | return JS_EXCEPTION; |
2862 | res = readlink(path, buf, sizeof(buf) - 1); |
2863 | if (res < 0) { |
2864 | buf[0] = '\0'; |
2865 | err = errno; |
2866 | } else { |
2867 | buf[res] = '\0'; |
2868 | err = 0; |
2869 | } |
2870 | JS_FreeCString(ctx, path); |
2871 | return make_string_error(ctx, buf, err); |
2872 | } |
2873 | |
2874 | static char **build_envp(JSContext *ctx, JSValueConst obj) |
2875 | { |
2876 | uint32_t len, i; |
2877 | JSPropertyEnum *tab; |
2878 | char **envp, *pair; |
2879 | const char *key, *str; |
2880 | JSValue val; |
2881 | size_t key_len, str_len; |
2882 | |
2883 | if (JS_GetOwnPropertyNames(ctx, &tab, &len, obj, |
2884 | JS_GPN_STRING_MASK | JS_GPN_ENUM_ONLY) < 0) |
2885 | return NULL; |
2886 | envp = js_mallocz(ctx, sizeof(envp[0]) * ((size_t)len + 1)); |
2887 | if (!envp) |
2888 | goto fail; |
2889 | for(i = 0; i < len; i++) { |
2890 | val = JS_GetProperty(ctx, obj, tab[i].atom); |
2891 | if (JS_IsException(val)) |
2892 | goto fail; |
2893 | str = JS_ToCString(ctx, val); |
2894 | JS_FreeValue(ctx, val); |
2895 | if (!str) |
2896 | goto fail; |
2897 | key = JS_AtomToCString(ctx, tab[i].atom); |
2898 | if (!key) { |
2899 | JS_FreeCString(ctx, str); |
2900 | goto fail; |
2901 | } |
2902 | key_len = strlen(key); |
2903 | str_len = strlen(str); |
2904 | pair = js_malloc(ctx, key_len + str_len + 2); |
2905 | if (!pair) { |
2906 | JS_FreeCString(ctx, key); |
2907 | JS_FreeCString(ctx, str); |
2908 | goto fail; |
2909 | } |
2910 | memcpy(pair, key, key_len); |
2911 | pair[key_len] = '='; |
2912 | memcpy(pair + key_len + 1, str, str_len); |
2913 | pair[key_len + 1 + str_len] = '\0'; |
2914 | envp[i] = pair; |
2915 | JS_FreeCString(ctx, key); |
2916 | JS_FreeCString(ctx, str); |
2917 | } |
2918 | done: |
2919 | for(i = 0; i < len; i++) |
2920 | JS_FreeAtom(ctx, tab[i].atom); |
2921 | js_free(ctx, tab); |
2922 | return envp; |
2923 | fail: |
2924 | if (envp) { |
2925 | for(i = 0; i < len; i++) |
2926 | js_free(ctx, envp[i]); |
2927 | js_free(ctx, envp); |
2928 | envp = NULL; |
2929 | } |
2930 | goto done; |
2931 | } |
2932 | |
2933 | /* execvpe is not available on non GNU systems */ |
2934 | static int my_execvpe(const char *filename, char **argv, char **envp) |
2935 | { |
2936 | char *path, *p, *p_next, *p1; |
2937 | char buf[PATH_MAX]; |
2938 | size_t filename_len, path_len; |
2939 | BOOL eacces_error; |
2940 | |
2941 | filename_len = strlen(filename); |
2942 | if (filename_len == 0) { |
2943 | errno = ENOENT; |
2944 | return -1; |
2945 | } |
2946 | if (strchr(filename, '/')) |
2947 | return execve(filename, argv, envp); |
2948 | |
2949 | path = getenv("PATH" ); |
2950 | if (!path) |
2951 | path = (char *)"/bin:/usr/bin" ; |
2952 | eacces_error = FALSE; |
2953 | p = path; |
2954 | for(p = path; p != NULL; p = p_next) { |
2955 | p1 = strchr(p, ':'); |
2956 | if (!p1) { |
2957 | p_next = NULL; |
2958 | path_len = strlen(p); |
2959 | } else { |
2960 | p_next = p1 + 1; |
2961 | path_len = p1 - p; |
2962 | } |
2963 | /* path too long */ |
2964 | if ((path_len + 1 + filename_len + 1) > PATH_MAX) |
2965 | continue; |
2966 | memcpy(buf, p, path_len); |
2967 | buf[path_len] = '/'; |
2968 | memcpy(buf + path_len + 1, filename, filename_len); |
2969 | buf[path_len + 1 + filename_len] = '\0'; |
2970 | |
2971 | execve(buf, argv, envp); |
2972 | |
2973 | switch(errno) { |
2974 | case EACCES: |
2975 | eacces_error = TRUE; |
2976 | break; |
2977 | case ENOENT: |
2978 | case ENOTDIR: |
2979 | break; |
2980 | default: |
2981 | return -1; |
2982 | } |
2983 | } |
2984 | if (eacces_error) |
2985 | errno = EACCES; |
2986 | return -1; |
2987 | } |
2988 | |
2989 | /* exec(args[, options]) -> exitcode */ |
2990 | static JSValue js_os_exec(JSContext *ctx, JSValueConst this_val, |
2991 | int argc, JSValueConst *argv) |
2992 | { |
2993 | JSValueConst options, args = argv[0]; |
2994 | JSValue val, ret_val; |
2995 | const char **exec_argv, *file = NULL, *str, *cwd = NULL; |
2996 | char **envp = environ; |
2997 | uint32_t exec_argc, i; |
2998 | int ret, pid, status; |
2999 | BOOL block_flag = TRUE, use_path = TRUE; |
3000 | static const char *std_name[3] = { "stdin" , "stdout" , "stderr" }; |
3001 | int std_fds[3]; |
3002 | uint32_t uid = -1, gid = -1; |
3003 | |
3004 | val = JS_GetPropertyStr(ctx, args, "length" ); |
3005 | if (JS_IsException(val)) |
3006 | return JS_EXCEPTION; |
3007 | ret = JS_ToUint32(ctx, &exec_argc, val); |
3008 | JS_FreeValue(ctx, val); |
3009 | if (ret) |
3010 | return JS_EXCEPTION; |
3011 | /* arbitrary limit to avoid overflow */ |
3012 | if (exec_argc < 1 || exec_argc > 65535) { |
3013 | return JS_ThrowTypeError(ctx, "invalid number of arguments" ); |
3014 | } |
3015 | exec_argv = js_mallocz(ctx, sizeof(exec_argv[0]) * (exec_argc + 1)); |
3016 | if (!exec_argv) |
3017 | return JS_EXCEPTION; |
3018 | for(i = 0; i < exec_argc; i++) { |
3019 | val = JS_GetPropertyUint32(ctx, args, i); |
3020 | if (JS_IsException(val)) |
3021 | goto exception; |
3022 | str = JS_ToCString(ctx, val); |
3023 | JS_FreeValue(ctx, val); |
3024 | if (!str) |
3025 | goto exception; |
3026 | exec_argv[i] = str; |
3027 | } |
3028 | exec_argv[exec_argc] = NULL; |
3029 | |
3030 | for(i = 0; i < 3; i++) |
3031 | std_fds[i] = i; |
3032 | |
3033 | /* get the options, if any */ |
3034 | if (argc >= 2) { |
3035 | options = argv[1]; |
3036 | |
3037 | if (get_bool_option(ctx, &block_flag, options, "block" )) |
3038 | goto exception; |
3039 | if (get_bool_option(ctx, &use_path, options, "usePath" )) |
3040 | goto exception; |
3041 | |
3042 | val = JS_GetPropertyStr(ctx, options, "file" ); |
3043 | if (JS_IsException(val)) |
3044 | goto exception; |
3045 | if (!JS_IsUndefined(val)) { |
3046 | file = JS_ToCString(ctx, val); |
3047 | JS_FreeValue(ctx, val); |
3048 | if (!file) |
3049 | goto exception; |
3050 | } |
3051 | |
3052 | val = JS_GetPropertyStr(ctx, options, "cwd" ); |
3053 | if (JS_IsException(val)) |
3054 | goto exception; |
3055 | if (!JS_IsUndefined(val)) { |
3056 | cwd = JS_ToCString(ctx, val); |
3057 | JS_FreeValue(ctx, val); |
3058 | if (!cwd) |
3059 | goto exception; |
3060 | } |
3061 | |
3062 | /* stdin/stdout/stderr handles */ |
3063 | for(i = 0; i < 3; i++) { |
3064 | val = JS_GetPropertyStr(ctx, options, std_name[i]); |
3065 | if (JS_IsException(val)) |
3066 | goto exception; |
3067 | if (!JS_IsUndefined(val)) { |
3068 | int fd; |
3069 | ret = JS_ToInt32(ctx, &fd, val); |
3070 | JS_FreeValue(ctx, val); |
3071 | if (ret) |
3072 | goto exception; |
3073 | std_fds[i] = fd; |
3074 | } |
3075 | } |
3076 | |
3077 | val = JS_GetPropertyStr(ctx, options, "env" ); |
3078 | if (JS_IsException(val)) |
3079 | goto exception; |
3080 | if (!JS_IsUndefined(val)) { |
3081 | envp = build_envp(ctx, val); |
3082 | JS_FreeValue(ctx, val); |
3083 | if (!envp) |
3084 | goto exception; |
3085 | } |
3086 | |
3087 | val = JS_GetPropertyStr(ctx, options, "uid" ); |
3088 | if (JS_IsException(val)) |
3089 | goto exception; |
3090 | if (!JS_IsUndefined(val)) { |
3091 | ret = JS_ToUint32(ctx, &uid, val); |
3092 | JS_FreeValue(ctx, val); |
3093 | if (ret) |
3094 | goto exception; |
3095 | } |
3096 | |
3097 | val = JS_GetPropertyStr(ctx, options, "gid" ); |
3098 | if (JS_IsException(val)) |
3099 | goto exception; |
3100 | if (!JS_IsUndefined(val)) { |
3101 | ret = JS_ToUint32(ctx, &gid, val); |
3102 | JS_FreeValue(ctx, val); |
3103 | if (ret) |
3104 | goto exception; |
3105 | } |
3106 | } |
3107 | |
3108 | pid = fork(); |
3109 | if (pid < 0) { |
3110 | JS_ThrowTypeError(ctx, "fork error" ); |
3111 | goto exception; |
3112 | } |
3113 | if (pid == 0) { |
3114 | /* child */ |
3115 | |
3116 | /* remap the stdin/stdout/stderr handles if necessary */ |
3117 | for(i = 0; i < 3; i++) { |
3118 | if (std_fds[i] != i) { |
3119 | if (dup2(std_fds[i], i) < 0) |
3120 | _exit(127); |
3121 | } |
3122 | } |
3123 | #if defined(HAVE_CLOSEFROM) |
3124 | /* closefrom() is available on many recent unix systems: |
3125 | Linux with glibc 2.34+, Solaris 9+, FreeBSD 7.3+, |
3126 | NetBSD 3.0+, OpenBSD 3.5+. |
3127 | Linux with the musl libc and macOS don't have it. |
3128 | */ |
3129 | |
3130 | closefrom(3); |
3131 | #else |
3132 | { |
3133 | /* Close the file handles manually, limit to 1024 to avoid |
3134 | costly loop on linux Alpine where sysconf(_SC_OPEN_MAX) |
3135 | returns a huge value 1048576. |
3136 | Patch inspired by nicolas-duteil-nova. See also: |
3137 | https://stackoverflow.com/questions/73229353/ |
3138 | https://stackoverflow.com/questions/899038/#918469 |
3139 | */ |
3140 | int fd_max = min_int(sysconf(_SC_OPEN_MAX), 1024); |
3141 | for(i = 3; i < fd_max; i++) |
3142 | close(i); |
3143 | } |
3144 | #endif |
3145 | if (cwd) { |
3146 | if (chdir(cwd) < 0) |
3147 | _exit(127); |
3148 | } |
3149 | if (uid != -1) { |
3150 | if (setuid(uid) < 0) |
3151 | _exit(127); |
3152 | } |
3153 | if (gid != -1) { |
3154 | if (setgid(gid) < 0) |
3155 | _exit(127); |
3156 | } |
3157 | |
3158 | if (!file) |
3159 | file = exec_argv[0]; |
3160 | if (use_path) |
3161 | ret = my_execvpe(file, (char **)exec_argv, envp); |
3162 | else |
3163 | ret = execve(file, (char **)exec_argv, envp); |
3164 | _exit(127); |
3165 | } |
3166 | /* parent */ |
3167 | if (block_flag) { |
3168 | for(;;) { |
3169 | ret = waitpid(pid, &status, 0); |
3170 | if (ret == pid) { |
3171 | if (WIFEXITED(status)) { |
3172 | ret = WEXITSTATUS(status); |
3173 | break; |
3174 | } else if (WIFSIGNALED(status)) { |
3175 | ret = -WTERMSIG(status); |
3176 | break; |
3177 | } |
3178 | } |
3179 | } |
3180 | } else { |
3181 | ret = pid; |
3182 | } |
3183 | ret_val = JS_NewInt32(ctx, ret); |
3184 | done: |
3185 | JS_FreeCString(ctx, file); |
3186 | JS_FreeCString(ctx, cwd); |
3187 | for(i = 0; i < exec_argc; i++) |
3188 | JS_FreeCString(ctx, exec_argv[i]); |
3189 | js_free(ctx, exec_argv); |
3190 | if (envp != environ) { |
3191 | char **p; |
3192 | p = envp; |
3193 | while (*p != NULL) { |
3194 | js_free(ctx, *p); |
3195 | p++; |
3196 | } |
3197 | js_free(ctx, envp); |
3198 | } |
3199 | return ret_val; |
3200 | exception: |
3201 | ret_val = JS_EXCEPTION; |
3202 | goto done; |
3203 | } |
3204 | |
3205 | /* getpid() -> pid */ |
3206 | static JSValue js_os_getpid(JSContext *ctx, JSValueConst this_val, |
3207 | int argc, JSValueConst *argv) |
3208 | { |
3209 | return JS_NewInt32(ctx, getpid()); |
3210 | } |
3211 | |
3212 | /* waitpid(pid, block) -> [pid, status] */ |
3213 | static JSValue js_os_waitpid(JSContext *ctx, JSValueConst this_val, |
3214 | int argc, JSValueConst *argv) |
3215 | { |
3216 | int pid, status, options, ret; |
3217 | JSValue obj; |
3218 | |
3219 | if (JS_ToInt32(ctx, &pid, argv[0])) |
3220 | return JS_EXCEPTION; |
3221 | if (JS_ToInt32(ctx, &options, argv[1])) |
3222 | return JS_EXCEPTION; |
3223 | |
3224 | ret = waitpid(pid, &status, options); |
3225 | if (ret < 0) { |
3226 | ret = -errno; |
3227 | status = 0; |
3228 | } |
3229 | |
3230 | obj = JS_NewArray(ctx); |
3231 | if (JS_IsException(obj)) |
3232 | return obj; |
3233 | JS_DefinePropertyValueUint32(ctx, obj, 0, JS_NewInt32(ctx, ret), |
3234 | JS_PROP_C_W_E); |
3235 | JS_DefinePropertyValueUint32(ctx, obj, 1, JS_NewInt32(ctx, status), |
3236 | JS_PROP_C_W_E); |
3237 | return obj; |
3238 | } |
3239 | |
3240 | /* pipe() -> [read_fd, write_fd] or null if error */ |
3241 | static JSValue js_os_pipe(JSContext *ctx, JSValueConst this_val, |
3242 | int argc, JSValueConst *argv) |
3243 | { |
3244 | int pipe_fds[2], ret; |
3245 | JSValue obj; |
3246 | |
3247 | ret = pipe(pipe_fds); |
3248 | if (ret < 0) |
3249 | return JS_NULL; |
3250 | obj = JS_NewArray(ctx); |
3251 | if (JS_IsException(obj)) |
3252 | return obj; |
3253 | JS_DefinePropertyValueUint32(ctx, obj, 0, JS_NewInt32(ctx, pipe_fds[0]), |
3254 | JS_PROP_C_W_E); |
3255 | JS_DefinePropertyValueUint32(ctx, obj, 1, JS_NewInt32(ctx, pipe_fds[1]), |
3256 | JS_PROP_C_W_E); |
3257 | return obj; |
3258 | } |
3259 | |
3260 | /* kill(pid, sig) */ |
3261 | static JSValue js_os_kill(JSContext *ctx, JSValueConst this_val, |
3262 | int argc, JSValueConst *argv) |
3263 | { |
3264 | int pid, sig, ret; |
3265 | |
3266 | if (JS_ToInt32(ctx, &pid, argv[0])) |
3267 | return JS_EXCEPTION; |
3268 | if (JS_ToInt32(ctx, &sig, argv[1])) |
3269 | return JS_EXCEPTION; |
3270 | ret = js_get_errno(kill(pid, sig)); |
3271 | return JS_NewInt32(ctx, ret); |
3272 | } |
3273 | |
3274 | /* dup(fd) */ |
3275 | static JSValue js_os_dup(JSContext *ctx, JSValueConst this_val, |
3276 | int argc, JSValueConst *argv) |
3277 | { |
3278 | int fd, ret; |
3279 | |
3280 | if (JS_ToInt32(ctx, &fd, argv[0])) |
3281 | return JS_EXCEPTION; |
3282 | ret = js_get_errno(dup(fd)); |
3283 | return JS_NewInt32(ctx, ret); |
3284 | } |
3285 | |
3286 | /* dup2(fd) */ |
3287 | static JSValue js_os_dup2(JSContext *ctx, JSValueConst this_val, |
3288 | int argc, JSValueConst *argv) |
3289 | { |
3290 | int fd, fd2, ret; |
3291 | |
3292 | if (JS_ToInt32(ctx, &fd, argv[0])) |
3293 | return JS_EXCEPTION; |
3294 | if (JS_ToInt32(ctx, &fd2, argv[1])) |
3295 | return JS_EXCEPTION; |
3296 | ret = js_get_errno(dup2(fd, fd2)); |
3297 | return JS_NewInt32(ctx, ret); |
3298 | } |
3299 | |
3300 | #endif /* !_WIN32 */ |
3301 | |
3302 | #ifdef USE_WORKER |
3303 | |
3304 | /* Worker */ |
3305 | |
3306 | typedef struct { |
3307 | JSWorkerMessagePipe *recv_pipe; |
3308 | JSWorkerMessagePipe *send_pipe; |
3309 | JSWorkerMessageHandler *msg_handler; |
3310 | } JSWorkerData; |
3311 | |
3312 | typedef struct { |
3313 | char *filename; /* module filename */ |
3314 | char *basename; /* module base name */ |
3315 | JSWorkerMessagePipe *recv_pipe, *send_pipe; |
3316 | int strip_flags; |
3317 | } WorkerFuncArgs; |
3318 | |
3319 | typedef struct { |
3320 | int ref_count; |
3321 | uint64_t buf[0]; |
3322 | } ; |
3323 | |
3324 | static JSClassID js_worker_class_id; |
3325 | static JSContext *(*js_worker_new_context_func)(JSRuntime *rt); |
3326 | |
3327 | static int atomic_add_int(int *ptr, int v) |
3328 | { |
3329 | return atomic_fetch_add((_Atomic(uint32_t) *)ptr, v) + v; |
3330 | } |
3331 | |
3332 | /* shared array buffer allocator */ |
3333 | static void *js_sab_alloc(void *opaque, size_t size) |
3334 | { |
3335 | JSSABHeader *sab; |
3336 | sab = malloc(sizeof(JSSABHeader) + size); |
3337 | if (!sab) |
3338 | return NULL; |
3339 | sab->ref_count = 1; |
3340 | return sab->buf; |
3341 | } |
3342 | |
3343 | static void js_sab_free(void *opaque, void *ptr) |
3344 | { |
3345 | JSSABHeader *sab; |
3346 | int ref_count; |
3347 | sab = (JSSABHeader *)((uint8_t *)ptr - sizeof(JSSABHeader)); |
3348 | ref_count = atomic_add_int(&sab->ref_count, -1); |
3349 | assert(ref_count >= 0); |
3350 | if (ref_count == 0) { |
3351 | free(sab); |
3352 | } |
3353 | } |
3354 | |
3355 | static void js_sab_dup(void *opaque, void *ptr) |
3356 | { |
3357 | JSSABHeader *sab; |
3358 | sab = (JSSABHeader *)((uint8_t *)ptr - sizeof(JSSABHeader)); |
3359 | atomic_add_int(&sab->ref_count, 1); |
3360 | } |
3361 | |
3362 | static JSWorkerMessagePipe *js_new_message_pipe(void) |
3363 | { |
3364 | JSWorkerMessagePipe *ps; |
3365 | |
3366 | ps = malloc(sizeof(*ps)); |
3367 | if (!ps) |
3368 | return NULL; |
3369 | if (js_waker_init(&ps->waker)) { |
3370 | free(ps); |
3371 | return NULL; |
3372 | } |
3373 | ps->ref_count = 1; |
3374 | init_list_head(&ps->msg_queue); |
3375 | pthread_mutex_init(&ps->mutex, NULL); |
3376 | return ps; |
3377 | } |
3378 | |
3379 | static JSWorkerMessagePipe *js_dup_message_pipe(JSWorkerMessagePipe *ps) |
3380 | { |
3381 | atomic_add_int(&ps->ref_count, 1); |
3382 | return ps; |
3383 | } |
3384 | |
3385 | static void js_free_message(JSWorkerMessage *msg) |
3386 | { |
3387 | size_t i; |
3388 | /* free the SAB */ |
3389 | for(i = 0; i < msg->sab_tab_len; i++) { |
3390 | js_sab_free(NULL, msg->sab_tab[i]); |
3391 | } |
3392 | free(msg->sab_tab); |
3393 | free(msg->data); |
3394 | free(msg); |
3395 | } |
3396 | |
3397 | static void js_free_message_pipe(JSWorkerMessagePipe *ps) |
3398 | { |
3399 | struct list_head *el, *el1; |
3400 | JSWorkerMessage *msg; |
3401 | int ref_count; |
3402 | |
3403 | if (!ps) |
3404 | return; |
3405 | |
3406 | ref_count = atomic_add_int(&ps->ref_count, -1); |
3407 | assert(ref_count >= 0); |
3408 | if (ref_count == 0) { |
3409 | list_for_each_safe(el, el1, &ps->msg_queue) { |
3410 | msg = list_entry(el, JSWorkerMessage, link); |
3411 | js_free_message(msg); |
3412 | } |
3413 | pthread_mutex_destroy(&ps->mutex); |
3414 | js_waker_close(&ps->waker); |
3415 | free(ps); |
3416 | } |
3417 | } |
3418 | |
3419 | static void js_free_port(JSRuntime *rt, JSWorkerMessageHandler *port) |
3420 | { |
3421 | if (port) { |
3422 | js_free_message_pipe(port->recv_pipe); |
3423 | JS_FreeValueRT(rt, port->on_message_func); |
3424 | list_del(&port->link); |
3425 | js_free_rt(rt, port); |
3426 | } |
3427 | } |
3428 | |
3429 | static void js_worker_finalizer(JSRuntime *rt, JSValue val) |
3430 | { |
3431 | JSWorkerData *worker = JS_GetOpaque(val, js_worker_class_id); |
3432 | if (worker) { |
3433 | js_free_message_pipe(worker->recv_pipe); |
3434 | js_free_message_pipe(worker->send_pipe); |
3435 | js_free_port(rt, worker->msg_handler); |
3436 | js_free_rt(rt, worker); |
3437 | } |
3438 | } |
3439 | |
3440 | static JSClassDef js_worker_class = { |
3441 | "Worker" , |
3442 | .finalizer = js_worker_finalizer, |
3443 | }; |
3444 | |
3445 | static void *worker_func(void *opaque) |
3446 | { |
3447 | WorkerFuncArgs *args = opaque; |
3448 | JSRuntime *rt; |
3449 | JSThreadState *ts; |
3450 | JSContext *ctx; |
3451 | JSValue val; |
3452 | |
3453 | rt = JS_NewRuntime(); |
3454 | if (rt == NULL) { |
3455 | fprintf(stderr, "JS_NewRuntime failure" ); |
3456 | exit(1); |
3457 | } |
3458 | JS_SetStripInfo(rt, args->strip_flags); |
3459 | js_std_init_handlers(rt); |
3460 | |
3461 | JS_SetModuleLoaderFunc(rt, NULL, js_module_loader, NULL); |
3462 | |
3463 | /* set the pipe to communicate with the parent */ |
3464 | ts = JS_GetRuntimeOpaque(rt); |
3465 | ts->recv_pipe = args->recv_pipe; |
3466 | ts->send_pipe = args->send_pipe; |
3467 | |
3468 | /* function pointer to avoid linking the whole JS_NewContext() if |
3469 | not needed */ |
3470 | ctx = js_worker_new_context_func(rt); |
3471 | if (ctx == NULL) { |
3472 | fprintf(stderr, "JS_NewContext failure" ); |
3473 | } |
3474 | |
3475 | JS_SetCanBlock(rt, TRUE); |
3476 | |
3477 | js_std_add_helpers(ctx, -1, NULL); |
3478 | |
3479 | val = JS_LoadModule(ctx, args->basename, args->filename); |
3480 | free(args->filename); |
3481 | free(args->basename); |
3482 | free(args); |
3483 | val = js_std_await(ctx, val); |
3484 | if (JS_IsException(val)) |
3485 | js_std_dump_error(ctx); |
3486 | JS_FreeValue(ctx, val); |
3487 | |
3488 | js_std_loop(ctx); |
3489 | |
3490 | JS_FreeContext(ctx); |
3491 | js_std_free_handlers(rt); |
3492 | JS_FreeRuntime(rt); |
3493 | return NULL; |
3494 | } |
3495 | |
3496 | static JSValue js_worker_ctor_internal(JSContext *ctx, JSValueConst new_target, |
3497 | JSWorkerMessagePipe *recv_pipe, |
3498 | JSWorkerMessagePipe *send_pipe) |
3499 | { |
3500 | JSValue obj = JS_UNDEFINED, proto; |
3501 | JSWorkerData *s; |
3502 | |
3503 | /* create the object */ |
3504 | if (JS_IsUndefined(new_target)) { |
3505 | proto = JS_GetClassProto(ctx, js_worker_class_id); |
3506 | } else { |
3507 | proto = JS_GetPropertyStr(ctx, new_target, "prototype" ); |
3508 | if (JS_IsException(proto)) |
3509 | goto fail; |
3510 | } |
3511 | obj = JS_NewObjectProtoClass(ctx, proto, js_worker_class_id); |
3512 | JS_FreeValue(ctx, proto); |
3513 | if (JS_IsException(obj)) |
3514 | goto fail; |
3515 | s = js_mallocz(ctx, sizeof(*s)); |
3516 | if (!s) |
3517 | goto fail; |
3518 | s->recv_pipe = js_dup_message_pipe(recv_pipe); |
3519 | s->send_pipe = js_dup_message_pipe(send_pipe); |
3520 | |
3521 | JS_SetOpaque(obj, s); |
3522 | return obj; |
3523 | fail: |
3524 | JS_FreeValue(ctx, obj); |
3525 | return JS_EXCEPTION; |
3526 | } |
3527 | |
3528 | static JSValue js_worker_ctor(JSContext *ctx, JSValueConst new_target, |
3529 | int argc, JSValueConst *argv) |
3530 | { |
3531 | JSRuntime *rt = JS_GetRuntime(ctx); |
3532 | WorkerFuncArgs *args = NULL; |
3533 | pthread_t tid; |
3534 | pthread_attr_t attr; |
3535 | JSValue obj = JS_UNDEFINED; |
3536 | int ret; |
3537 | const char *filename = NULL, *basename; |
3538 | JSAtom basename_atom; |
3539 | |
3540 | /* XXX: in order to avoid problems with resource liberation, we |
3541 | don't support creating workers inside workers */ |
3542 | if (!is_main_thread(rt)) |
3543 | return JS_ThrowTypeError(ctx, "cannot create a worker inside a worker" ); |
3544 | |
3545 | /* base name, assuming the calling function is a normal JS |
3546 | function */ |
3547 | basename_atom = JS_GetScriptOrModuleName(ctx, 1); |
3548 | if (basename_atom == JS_ATOM_NULL) { |
3549 | return JS_ThrowTypeError(ctx, "could not determine calling script or module name" ); |
3550 | } |
3551 | basename = JS_AtomToCString(ctx, basename_atom); |
3552 | JS_FreeAtom(ctx, basename_atom); |
3553 | if (!basename) |
3554 | goto fail; |
3555 | |
3556 | /* module name */ |
3557 | filename = JS_ToCString(ctx, argv[0]); |
3558 | if (!filename) |
3559 | goto fail; |
3560 | |
3561 | args = malloc(sizeof(*args)); |
3562 | if (!args) |
3563 | goto oom_fail; |
3564 | memset(args, 0, sizeof(*args)); |
3565 | args->filename = strdup(filename); |
3566 | args->basename = strdup(basename); |
3567 | |
3568 | /* ports */ |
3569 | args->recv_pipe = js_new_message_pipe(); |
3570 | if (!args->recv_pipe) |
3571 | goto oom_fail; |
3572 | args->send_pipe = js_new_message_pipe(); |
3573 | if (!args->send_pipe) |
3574 | goto oom_fail; |
3575 | |
3576 | args->strip_flags = JS_GetStripInfo(rt); |
3577 | |
3578 | obj = js_worker_ctor_internal(ctx, new_target, |
3579 | args->send_pipe, args->recv_pipe); |
3580 | if (JS_IsException(obj)) |
3581 | goto fail; |
3582 | |
3583 | pthread_attr_init(&attr); |
3584 | /* no join at the end */ |
3585 | pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); |
3586 | ret = pthread_create(&tid, &attr, worker_func, args); |
3587 | pthread_attr_destroy(&attr); |
3588 | if (ret != 0) { |
3589 | JS_ThrowTypeError(ctx, "could not create worker" ); |
3590 | goto fail; |
3591 | } |
3592 | JS_FreeCString(ctx, basename); |
3593 | JS_FreeCString(ctx, filename); |
3594 | return obj; |
3595 | oom_fail: |
3596 | JS_ThrowOutOfMemory(ctx); |
3597 | fail: |
3598 | JS_FreeCString(ctx, basename); |
3599 | JS_FreeCString(ctx, filename); |
3600 | if (args) { |
3601 | free(args->filename); |
3602 | free(args->basename); |
3603 | js_free_message_pipe(args->recv_pipe); |
3604 | js_free_message_pipe(args->send_pipe); |
3605 | free(args); |
3606 | } |
3607 | JS_FreeValue(ctx, obj); |
3608 | return JS_EXCEPTION; |
3609 | } |
3610 | |
3611 | static JSValue js_worker_postMessage(JSContext *ctx, JSValueConst this_val, |
3612 | int argc, JSValueConst *argv) |
3613 | { |
3614 | JSWorkerData *worker = JS_GetOpaque2(ctx, this_val, js_worker_class_id); |
3615 | JSWorkerMessagePipe *ps; |
3616 | size_t data_len, sab_tab_len, i; |
3617 | uint8_t *data; |
3618 | JSWorkerMessage *msg; |
3619 | uint8_t **sab_tab; |
3620 | |
3621 | if (!worker) |
3622 | return JS_EXCEPTION; |
3623 | |
3624 | data = JS_WriteObject2(ctx, &data_len, argv[0], |
3625 | JS_WRITE_OBJ_SAB | JS_WRITE_OBJ_REFERENCE, |
3626 | &sab_tab, &sab_tab_len); |
3627 | if (!data) |
3628 | return JS_EXCEPTION; |
3629 | |
3630 | msg = malloc(sizeof(*msg)); |
3631 | if (!msg) |
3632 | goto fail; |
3633 | msg->data = NULL; |
3634 | msg->sab_tab = NULL; |
3635 | |
3636 | /* must reallocate because the allocator may be different */ |
3637 | msg->data = malloc(data_len); |
3638 | if (!msg->data) |
3639 | goto fail; |
3640 | memcpy(msg->data, data, data_len); |
3641 | msg->data_len = data_len; |
3642 | |
3643 | if (sab_tab_len > 0) { |
3644 | msg->sab_tab = malloc(sizeof(msg->sab_tab[0]) * sab_tab_len); |
3645 | if (!msg->sab_tab) |
3646 | goto fail; |
3647 | memcpy(msg->sab_tab, sab_tab, sizeof(msg->sab_tab[0]) * sab_tab_len); |
3648 | } |
3649 | msg->sab_tab_len = sab_tab_len; |
3650 | |
3651 | js_free(ctx, data); |
3652 | js_free(ctx, sab_tab); |
3653 | |
3654 | /* increment the SAB reference counts */ |
3655 | for(i = 0; i < msg->sab_tab_len; i++) { |
3656 | js_sab_dup(NULL, msg->sab_tab[i]); |
3657 | } |
3658 | |
3659 | ps = worker->send_pipe; |
3660 | pthread_mutex_lock(&ps->mutex); |
3661 | /* indicate that data is present */ |
3662 | if (list_empty(&ps->msg_queue)) |
3663 | js_waker_signal(&ps->waker); |
3664 | list_add_tail(&msg->link, &ps->msg_queue); |
3665 | pthread_mutex_unlock(&ps->mutex); |
3666 | return JS_UNDEFINED; |
3667 | fail: |
3668 | if (msg) { |
3669 | free(msg->data); |
3670 | free(msg->sab_tab); |
3671 | free(msg); |
3672 | } |
3673 | js_free(ctx, data); |
3674 | js_free(ctx, sab_tab); |
3675 | return JS_EXCEPTION; |
3676 | |
3677 | } |
3678 | |
3679 | static JSValue js_worker_set_onmessage(JSContext *ctx, JSValueConst this_val, |
3680 | JSValueConst func) |
3681 | { |
3682 | JSRuntime *rt = JS_GetRuntime(ctx); |
3683 | JSThreadState *ts = JS_GetRuntimeOpaque(rt); |
3684 | JSWorkerData *worker = JS_GetOpaque2(ctx, this_val, js_worker_class_id); |
3685 | JSWorkerMessageHandler *port; |
3686 | |
3687 | if (!worker) |
3688 | return JS_EXCEPTION; |
3689 | |
3690 | port = worker->msg_handler; |
3691 | if (JS_IsNull(func)) { |
3692 | if (port) { |
3693 | js_free_port(rt, port); |
3694 | worker->msg_handler = NULL; |
3695 | } |
3696 | } else { |
3697 | if (!JS_IsFunction(ctx, func)) |
3698 | return JS_ThrowTypeError(ctx, "not a function" ); |
3699 | if (!port) { |
3700 | port = js_mallocz(ctx, sizeof(*port)); |
3701 | if (!port) |
3702 | return JS_EXCEPTION; |
3703 | port->recv_pipe = js_dup_message_pipe(worker->recv_pipe); |
3704 | port->on_message_func = JS_NULL; |
3705 | list_add_tail(&port->link, &ts->port_list); |
3706 | worker->msg_handler = port; |
3707 | } |
3708 | JS_FreeValue(ctx, port->on_message_func); |
3709 | port->on_message_func = JS_DupValue(ctx, func); |
3710 | } |
3711 | return JS_UNDEFINED; |
3712 | } |
3713 | |
3714 | static JSValue js_worker_get_onmessage(JSContext *ctx, JSValueConst this_val) |
3715 | { |
3716 | JSWorkerData *worker = JS_GetOpaque2(ctx, this_val, js_worker_class_id); |
3717 | JSWorkerMessageHandler *port; |
3718 | if (!worker) |
3719 | return JS_EXCEPTION; |
3720 | port = worker->msg_handler; |
3721 | if (port) { |
3722 | return JS_DupValue(ctx, port->on_message_func); |
3723 | } else { |
3724 | return JS_NULL; |
3725 | } |
3726 | } |
3727 | |
3728 | static const JSCFunctionListEntry js_worker_proto_funcs[] = { |
3729 | JS_CFUNC_DEF("postMessage" , 1, js_worker_postMessage ), |
3730 | JS_CGETSET_DEF("onmessage" , js_worker_get_onmessage, js_worker_set_onmessage ), |
3731 | }; |
3732 | |
3733 | #endif /* USE_WORKER */ |
3734 | |
3735 | void js_std_set_worker_new_context_func(JSContext *(*func)(JSRuntime *rt)) |
3736 | { |
3737 | #ifdef USE_WORKER |
3738 | js_worker_new_context_func = func; |
3739 | #endif |
3740 | } |
3741 | |
3742 | #if defined(_WIN32) |
3743 | #define OS_PLATFORM "win32" |
3744 | #elif defined(__APPLE__) |
3745 | #define OS_PLATFORM "darwin" |
3746 | #elif defined(EMSCRIPTEN) |
3747 | #define OS_PLATFORM "js" |
3748 | #else |
3749 | #define OS_PLATFORM "linux" |
3750 | #endif |
3751 | |
3752 | #define OS_FLAG(x) JS_PROP_INT32_DEF(#x, x, JS_PROP_CONFIGURABLE ) |
3753 | |
3754 | static const JSCFunctionListEntry js_os_funcs[] = { |
3755 | JS_CFUNC_DEF("open" , 2, js_os_open ), |
3756 | OS_FLAG(O_RDONLY), |
3757 | OS_FLAG(O_WRONLY), |
3758 | OS_FLAG(O_RDWR), |
3759 | OS_FLAG(O_APPEND), |
3760 | OS_FLAG(O_CREAT), |
3761 | OS_FLAG(O_EXCL), |
3762 | OS_FLAG(O_TRUNC), |
3763 | #if defined(_WIN32) |
3764 | OS_FLAG(O_BINARY), |
3765 | OS_FLAG(O_TEXT), |
3766 | #endif |
3767 | JS_CFUNC_DEF("close" , 1, js_os_close ), |
3768 | JS_CFUNC_DEF("seek" , 3, js_os_seek ), |
3769 | JS_CFUNC_MAGIC_DEF("read" , 4, js_os_read_write, 0 ), |
3770 | JS_CFUNC_MAGIC_DEF("write" , 4, js_os_read_write, 1 ), |
3771 | JS_CFUNC_DEF("isatty" , 1, js_os_isatty ), |
3772 | JS_CFUNC_DEF("ttyGetWinSize" , 1, js_os_ttyGetWinSize ), |
3773 | JS_CFUNC_DEF("ttySetRaw" , 1, js_os_ttySetRaw ), |
3774 | JS_CFUNC_DEF("remove" , 1, js_os_remove ), |
3775 | JS_CFUNC_DEF("rename" , 2, js_os_rename ), |
3776 | JS_CFUNC_MAGIC_DEF("setReadHandler" , 2, js_os_setReadHandler, 0 ), |
3777 | JS_CFUNC_MAGIC_DEF("setWriteHandler" , 2, js_os_setReadHandler, 1 ), |
3778 | JS_CFUNC_DEF("signal" , 2, js_os_signal ), |
3779 | OS_FLAG(SIGINT), |
3780 | OS_FLAG(SIGABRT), |
3781 | OS_FLAG(SIGFPE), |
3782 | OS_FLAG(SIGILL), |
3783 | OS_FLAG(SIGSEGV), |
3784 | OS_FLAG(SIGTERM), |
3785 | #if !defined(_WIN32) |
3786 | OS_FLAG(SIGQUIT), |
3787 | OS_FLAG(SIGPIPE), |
3788 | OS_FLAG(SIGALRM), |
3789 | OS_FLAG(SIGUSR1), |
3790 | OS_FLAG(SIGUSR2), |
3791 | OS_FLAG(SIGCHLD), |
3792 | OS_FLAG(SIGCONT), |
3793 | OS_FLAG(SIGSTOP), |
3794 | OS_FLAG(SIGTSTP), |
3795 | OS_FLAG(SIGTTIN), |
3796 | OS_FLAG(SIGTTOU), |
3797 | #endif |
3798 | JS_CFUNC_DEF("now" , 0, js_os_now ), |
3799 | JS_CFUNC_DEF("setTimeout" , 2, js_os_setTimeout ), |
3800 | JS_CFUNC_DEF("clearTimeout" , 1, js_os_clearTimeout ), |
3801 | JS_CFUNC_DEF("sleepAsync" , 1, js_os_sleepAsync ), |
3802 | JS_PROP_STRING_DEF("platform" , OS_PLATFORM, 0 ), |
3803 | JS_CFUNC_DEF("getcwd" , 0, js_os_getcwd ), |
3804 | JS_CFUNC_DEF("chdir" , 0, js_os_chdir ), |
3805 | JS_CFUNC_DEF("mkdir" , 1, js_os_mkdir ), |
3806 | JS_CFUNC_DEF("readdir" , 1, js_os_readdir ), |
3807 | /* st_mode constants */ |
3808 | OS_FLAG(S_IFMT), |
3809 | OS_FLAG(S_IFIFO), |
3810 | OS_FLAG(S_IFCHR), |
3811 | OS_FLAG(S_IFDIR), |
3812 | OS_FLAG(S_IFBLK), |
3813 | OS_FLAG(S_IFREG), |
3814 | #if !defined(_WIN32) |
3815 | OS_FLAG(S_IFSOCK), |
3816 | OS_FLAG(S_IFLNK), |
3817 | OS_FLAG(S_ISGID), |
3818 | OS_FLAG(S_ISUID), |
3819 | #endif |
3820 | JS_CFUNC_MAGIC_DEF("stat" , 1, js_os_stat, 0 ), |
3821 | JS_CFUNC_DEF("utimes" , 3, js_os_utimes ), |
3822 | JS_CFUNC_DEF("sleep" , 1, js_os_sleep ), |
3823 | JS_CFUNC_DEF("realpath" , 1, js_os_realpath ), |
3824 | #if !defined(_WIN32) |
3825 | JS_CFUNC_MAGIC_DEF("lstat" , 1, js_os_stat, 1 ), |
3826 | JS_CFUNC_DEF("symlink" , 2, js_os_symlink ), |
3827 | JS_CFUNC_DEF("readlink" , 1, js_os_readlink ), |
3828 | JS_CFUNC_DEF("exec" , 1, js_os_exec ), |
3829 | JS_CFUNC_DEF("getpid" , 0, js_os_getpid ), |
3830 | JS_CFUNC_DEF("waitpid" , 2, js_os_waitpid ), |
3831 | OS_FLAG(WNOHANG), |
3832 | JS_CFUNC_DEF("pipe" , 0, js_os_pipe ), |
3833 | JS_CFUNC_DEF("kill" , 2, js_os_kill ), |
3834 | JS_CFUNC_DEF("dup" , 1, js_os_dup ), |
3835 | JS_CFUNC_DEF("dup2" , 2, js_os_dup2 ), |
3836 | #endif |
3837 | }; |
3838 | |
3839 | static int js_os_init(JSContext *ctx, JSModuleDef *m) |
3840 | { |
3841 | os_poll_func = js_os_poll; |
3842 | |
3843 | #ifdef USE_WORKER |
3844 | { |
3845 | JSRuntime *rt = JS_GetRuntime(ctx); |
3846 | JSThreadState *ts = JS_GetRuntimeOpaque(rt); |
3847 | JSValue proto, obj; |
3848 | /* Worker class */ |
3849 | JS_NewClassID(&js_worker_class_id); |
3850 | JS_NewClass(JS_GetRuntime(ctx), js_worker_class_id, &js_worker_class); |
3851 | proto = JS_NewObject(ctx); |
3852 | JS_SetPropertyFunctionList(ctx, proto, js_worker_proto_funcs, countof(js_worker_proto_funcs)); |
3853 | |
3854 | obj = JS_NewCFunction2(ctx, js_worker_ctor, "Worker" , 1, |
3855 | JS_CFUNC_constructor, 0); |
3856 | JS_SetConstructor(ctx, obj, proto); |
3857 | |
3858 | JS_SetClassProto(ctx, js_worker_class_id, proto); |
3859 | |
3860 | /* set 'Worker.parent' if necessary */ |
3861 | if (ts->recv_pipe && ts->send_pipe) { |
3862 | JS_DefinePropertyValueStr(ctx, obj, "parent" , |
3863 | js_worker_ctor_internal(ctx, JS_UNDEFINED, ts->recv_pipe, ts->send_pipe), |
3864 | JS_PROP_C_W_E); |
3865 | } |
3866 | |
3867 | JS_SetModuleExport(ctx, m, "Worker" , obj); |
3868 | } |
3869 | #endif /* USE_WORKER */ |
3870 | |
3871 | return JS_SetModuleExportList(ctx, m, js_os_funcs, |
3872 | countof(js_os_funcs)); |
3873 | } |
3874 | |
3875 | JSModuleDef *js_init_module_os(JSContext *ctx, const char *module_name) |
3876 | { |
3877 | JSModuleDef *m; |
3878 | m = JS_NewCModule(ctx, module_name, js_os_init); |
3879 | if (!m) |
3880 | return NULL; |
3881 | JS_AddModuleExportList(ctx, m, js_os_funcs, countof(js_os_funcs)); |
3882 | #ifdef USE_WORKER |
3883 | JS_AddModuleExport(ctx, m, "Worker" ); |
3884 | #endif |
3885 | return m; |
3886 | } |
3887 | |
3888 | /**********************************************************/ |
3889 | |
3890 | static JSValue js_print(JSContext *ctx, JSValueConst this_val, |
3891 | int argc, JSValueConst *argv) |
3892 | { |
3893 | int i; |
3894 | const char *str; |
3895 | size_t len; |
3896 | |
3897 | for(i = 0; i < argc; i++) { |
3898 | if (i != 0) |
3899 | putchar(' '); |
3900 | str = JS_ToCStringLen(ctx, &len, argv[i]); |
3901 | if (!str) |
3902 | return JS_EXCEPTION; |
3903 | fwrite(str, 1, len, stdout); |
3904 | JS_FreeCString(ctx, str); |
3905 | } |
3906 | putchar('\n'); |
3907 | return JS_UNDEFINED; |
3908 | } |
3909 | |
3910 | static JSValue js_console_log(JSContext *ctx, JSValueConst this_val, |
3911 | int argc, JSValueConst *argv) |
3912 | { |
3913 | JSValue ret; |
3914 | ret = js_print(ctx, this_val, argc, argv); |
3915 | fflush(stdout); |
3916 | return ret; |
3917 | } |
3918 | |
3919 | void js_std_add_helpers(JSContext *ctx, int argc, char **argv) |
3920 | { |
3921 | JSValue global_obj, console, args, performance; |
3922 | int i; |
3923 | |
3924 | /* XXX: should these global definitions be enumerable? */ |
3925 | global_obj = JS_GetGlobalObject(ctx); |
3926 | |
3927 | console = JS_NewObject(ctx); |
3928 | JS_SetPropertyStr(ctx, console, "log" , |
3929 | JS_NewCFunction(ctx, js_console_log, "log" , 1)); |
3930 | JS_SetPropertyStr(ctx, global_obj, "console" , console); |
3931 | |
3932 | performance = JS_NewObject(ctx); |
3933 | JS_SetPropertyStr(ctx, performance, "now" , |
3934 | JS_NewCFunction(ctx, js_os_now, "now" , 0)); |
3935 | JS_SetPropertyStr(ctx, global_obj, "performance" , performance); |
3936 | |
3937 | /* same methods as the mozilla JS shell */ |
3938 | if (argc >= 0) { |
3939 | args = JS_NewArray(ctx); |
3940 | for(i = 0; i < argc; i++) { |
3941 | JS_SetPropertyUint32(ctx, args, i, JS_NewString(ctx, argv[i])); |
3942 | } |
3943 | JS_SetPropertyStr(ctx, global_obj, "scriptArgs" , args); |
3944 | } |
3945 | |
3946 | JS_SetPropertyStr(ctx, global_obj, "print" , |
3947 | JS_NewCFunction(ctx, js_print, "print" , 1)); |
3948 | JS_SetPropertyStr(ctx, global_obj, "__loadScript" , |
3949 | JS_NewCFunction(ctx, js_loadScript, "__loadScript" , 1)); |
3950 | |
3951 | JS_FreeValue(ctx, global_obj); |
3952 | } |
3953 | |
3954 | void js_std_init_handlers(JSRuntime *rt) |
3955 | { |
3956 | JSThreadState *ts; |
3957 | |
3958 | ts = malloc(sizeof(*ts)); |
3959 | if (!ts) { |
3960 | fprintf(stderr, "Could not allocate memory for the worker" ); |
3961 | exit(1); |
3962 | } |
3963 | memset(ts, 0, sizeof(*ts)); |
3964 | init_list_head(&ts->os_rw_handlers); |
3965 | init_list_head(&ts->os_signal_handlers); |
3966 | init_list_head(&ts->os_timers); |
3967 | init_list_head(&ts->port_list); |
3968 | ts->next_timer_id = 1; |
3969 | |
3970 | JS_SetRuntimeOpaque(rt, ts); |
3971 | |
3972 | #ifdef USE_WORKER |
3973 | /* set the SharedArrayBuffer memory handlers */ |
3974 | { |
3975 | JSSharedArrayBufferFunctions sf; |
3976 | memset(&sf, 0, sizeof(sf)); |
3977 | sf.sab_alloc = js_sab_alloc; |
3978 | sf.sab_free = js_sab_free; |
3979 | sf.sab_dup = js_sab_dup; |
3980 | JS_SetSharedArrayBufferFunctions(rt, &sf); |
3981 | } |
3982 | #endif |
3983 | } |
3984 | |
3985 | void js_std_free_handlers(JSRuntime *rt) |
3986 | { |
3987 | JSThreadState *ts = JS_GetRuntimeOpaque(rt); |
3988 | struct list_head *el, *el1; |
3989 | |
3990 | list_for_each_safe(el, el1, &ts->os_rw_handlers) { |
3991 | JSOSRWHandler *rh = list_entry(el, JSOSRWHandler, link); |
3992 | free_rw_handler(rt, rh); |
3993 | } |
3994 | |
3995 | list_for_each_safe(el, el1, &ts->os_signal_handlers) { |
3996 | JSOSSignalHandler *sh = list_entry(el, JSOSSignalHandler, link); |
3997 | free_sh(rt, sh); |
3998 | } |
3999 | |
4000 | list_for_each_safe(el, el1, &ts->os_timers) { |
4001 | JSOSTimer *th = list_entry(el, JSOSTimer, link); |
4002 | free_timer(rt, th); |
4003 | } |
4004 | |
4005 | #ifdef USE_WORKER |
4006 | /* XXX: free port_list ? */ |
4007 | js_free_message_pipe(ts->recv_pipe); |
4008 | js_free_message_pipe(ts->send_pipe); |
4009 | #endif |
4010 | |
4011 | free(ts); |
4012 | JS_SetRuntimeOpaque(rt, NULL); /* fail safe */ |
4013 | } |
4014 | |
4015 | static void js_dump_obj(JSContext *ctx, FILE *f, JSValueConst val) |
4016 | { |
4017 | const char *str; |
4018 | |
4019 | str = JS_ToCString(ctx, val); |
4020 | if (str) { |
4021 | fprintf(f, "%s\n" , str); |
4022 | JS_FreeCString(ctx, str); |
4023 | } else { |
4024 | fprintf(f, "[exception]\n" ); |
4025 | } |
4026 | } |
4027 | |
4028 | static void js_std_dump_error1(JSContext *ctx, JSValueConst exception_val) |
4029 | { |
4030 | JSValue val; |
4031 | BOOL is_error; |
4032 | |
4033 | is_error = JS_IsError(ctx, exception_val); |
4034 | js_dump_obj(ctx, stderr, exception_val); |
4035 | if (is_error) { |
4036 | val = JS_GetPropertyStr(ctx, exception_val, "stack" ); |
4037 | if (!JS_IsUndefined(val)) { |
4038 | js_dump_obj(ctx, stderr, val); |
4039 | } |
4040 | JS_FreeValue(ctx, val); |
4041 | } |
4042 | } |
4043 | |
4044 | void js_std_dump_error(JSContext *ctx) |
4045 | { |
4046 | JSValue exception_val; |
4047 | |
4048 | exception_val = JS_GetException(ctx); |
4049 | js_std_dump_error1(ctx, exception_val); |
4050 | JS_FreeValue(ctx, exception_val); |
4051 | } |
4052 | |
4053 | void js_std_promise_rejection_tracker(JSContext *ctx, JSValueConst promise, |
4054 | JSValueConst reason, |
4055 | BOOL is_handled, void *opaque) |
4056 | { |
4057 | if (!is_handled) { |
4058 | fprintf(stderr, "Possibly unhandled promise rejection: " ); |
4059 | js_std_dump_error1(ctx, reason); |
4060 | exit(1); |
4061 | } |
4062 | } |
4063 | |
4064 | /* main loop which calls the user JS callbacks */ |
4065 | void js_std_loop(JSContext *ctx) |
4066 | { |
4067 | JSContext *ctx1; |
4068 | int err; |
4069 | |
4070 | for(;;) { |
4071 | /* execute the pending jobs */ |
4072 | for(;;) { |
4073 | err = JS_ExecutePendingJob(JS_GetRuntime(ctx), &ctx1); |
4074 | if (err <= 0) { |
4075 | if (err < 0) { |
4076 | js_std_dump_error(ctx1); |
4077 | } |
4078 | break; |
4079 | } |
4080 | } |
4081 | |
4082 | if (!os_poll_func || os_poll_func(ctx)) |
4083 | break; |
4084 | } |
4085 | } |
4086 | |
4087 | /* Wait for a promise and execute pending jobs while waiting for |
4088 | it. Return the promise result or JS_EXCEPTION in case of promise |
4089 | rejection. */ |
4090 | JSValue js_std_await(JSContext *ctx, JSValue obj) |
4091 | { |
4092 | JSValue ret; |
4093 | int state; |
4094 | |
4095 | for(;;) { |
4096 | state = JS_PromiseState(ctx, obj); |
4097 | if (state == JS_PROMISE_FULFILLED) { |
4098 | ret = JS_PromiseResult(ctx, obj); |
4099 | JS_FreeValue(ctx, obj); |
4100 | break; |
4101 | } else if (state == JS_PROMISE_REJECTED) { |
4102 | ret = JS_Throw(ctx, JS_PromiseResult(ctx, obj)); |
4103 | JS_FreeValue(ctx, obj); |
4104 | break; |
4105 | } else if (state == JS_PROMISE_PENDING) { |
4106 | JSContext *ctx1; |
4107 | int err; |
4108 | err = JS_ExecutePendingJob(JS_GetRuntime(ctx), &ctx1); |
4109 | if (err < 0) { |
4110 | js_std_dump_error(ctx1); |
4111 | } |
4112 | if (os_poll_func) |
4113 | os_poll_func(ctx); |
4114 | } else { |
4115 | /* not a promise */ |
4116 | ret = obj; |
4117 | break; |
4118 | } |
4119 | } |
4120 | return ret; |
4121 | } |
4122 | |
4123 | void js_std_eval_binary(JSContext *ctx, const uint8_t *buf, size_t buf_len, |
4124 | int load_only) |
4125 | { |
4126 | JSValue obj, val; |
4127 | obj = JS_ReadObject(ctx, buf, buf_len, JS_READ_OBJ_BYTECODE); |
4128 | if (JS_IsException(obj)) |
4129 | goto exception; |
4130 | if (load_only) { |
4131 | if (JS_VALUE_GET_TAG(obj) == JS_TAG_MODULE) { |
4132 | js_module_set_import_meta(ctx, obj, FALSE, FALSE); |
4133 | } |
4134 | } else { |
4135 | if (JS_VALUE_GET_TAG(obj) == JS_TAG_MODULE) { |
4136 | if (JS_ResolveModule(ctx, obj) < 0) { |
4137 | JS_FreeValue(ctx, obj); |
4138 | goto exception; |
4139 | } |
4140 | js_module_set_import_meta(ctx, obj, FALSE, TRUE); |
4141 | val = JS_EvalFunction(ctx, obj); |
4142 | val = js_std_await(ctx, val); |
4143 | } else { |
4144 | val = JS_EvalFunction(ctx, obj); |
4145 | } |
4146 | if (JS_IsException(val)) { |
4147 | exception: |
4148 | js_std_dump_error(ctx); |
4149 | exit(1); |
4150 | } |
4151 | JS_FreeValue(ctx, val); |
4152 | } |
4153 | } |
4154 | |